<![CDATA[
<html>
<head>
<title>Rabbit 4000 Microprocessor</title>
<meta name="Keywords" content=" microprocessor, 8-bit microprocessor, embedded microprocessor, embedded systems, core module, microcontroller, rabbitcore, TCPIP, TCP/IP, embedded control, embedded ethernet, 8-bit, 16-bit, C language, C programming, glueless architecture, microcontroller, Dynamic C, C programmable, C development, C compiler, C editor, debugger, embedded internet, Z180, remote programming, hd64180, low cost development kits, real-time kernel, MicroC/OS, Rabbit Semiconductor, Rabbit 2000, Rabbit 3000">
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<meta name="GENERATOR" content="Quadralay WebWorks Publisher Professional Edition 6.0.5">
<meta name="TEMPLATEBASE" content="Portable HTML">
<meta name="LASTUPDATED" content="07/19/07 13:17:28">
<script src="../../../__utm.js" type="text/javascript"></script>
</head>
<body link="#006600" vlink="#006600" text="#000000" alink="#006600" bgcolor="#FFFFFF">
<blockquote>
<h2>
<a name="853432"> </a><font color="#006600" face="Arial, Helvetica, sans-serif">Table of Contents</font>
</h2>
<h3>
<a name="937268"> </a><font face="Arial, sans-serif"><a href="1intro.htm#992138">1. The Rabbit 4000 Processor </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937270"> </a><font face="Arial, sans-serif"><a href="1intro.htm#992223">1.1 Introduction </a></font></font> <dd> <font size="2"><a name="937272"> </a><font face="Arial, sans-serif"><a href="1intro.htm#1012805">1.2 Features </a></font></font> <dd> <font size="2"><a name="937274"> </a><font face="Arial, sans-serif"><a href="1intro.htm#992140">1.3 Block Diagram </a></font></font> <dd> <font size="2"><a name="937276"> </a><font face="Arial, sans-serif"><a href="1intro.htm#1012150">1.4 Basic Specifications </a></font></font> <dd> <font size="2"><a name="937278"> </a><font face="Arial, sans-serif"><a href="1intro.htm#1011795">1.5 Comparing Rabbit Microprocessors </a></font></font></dl>
<h3>
<a name="937280"> </a><font face="Arial, sans-serif"><a href="2clocks.htm#1009342">2. Clocks </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937282"> </a><font face="Arial, sans-serif"><a href="2clocks.htm#1009346">2.1 Overview </a></font></font> <dl>
<dd> <a name="937284"> </a><font face="Times, serif"><a href="2clocks.htm#1009356">2.1.1 Block Diagram </a></font>
<dd> <a name="937286"> </a><font face="Times, serif"><a href="2clocks.htm#1009376">2.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937288"> </a><font face="Arial, sans-serif"><a href="2clocks.htm#1009399">2.2 Dependencies </a></font></font> <dl>
<dd> <a name="937290"> </a><font face="Times, serif"><a href="2clocks.htm#1009400">2.2.1 I/O Pins </a></font>
<dd> <a name="937292"> </a><font face="Times, serif"><a href="2clocks.htm#1009411">2.2.2 Other Registers </a></font>
</dl>
<dd> <font size="2"><a name="937294"> </a><font face="Arial, sans-serif"><a href="2clocks.htm#1009626">2.3 Operation </a></font></font> <dl>
<dd> <a name="937296"> </a><font face="Times, serif"><a href="2clocks.htm#1009627">2.3.1 Main Clock </a></font>
<dd> <a name="937298"> </a><font face="Times, serif"><a href="2clocks.htm#1009325">2.3.2 Spectrum Spreader </a></font>
<dd> <a name="937300"> </a><font face="Times, serif"><a href="2clocks.htm#992149">2.3.3 Clock Doubler </a></font>
<dd> <a name="937302"> </a><font face="Times, serif"><a href="2clocks.htm#992151">2.3.4 32 kHz Clock </a></font>
</dl>
<dd> <font size="2"><a name="937304"> </a><font face="Arial, sans-serif"><a href="2clocks.htm#992153">2.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937306"> </a><font face="Arial, sans-serif"><a href="3resboot.htm#1008005">3. Reset and Bootstrap </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937308"> </a><font face="Arial, sans-serif"><a href="3resboot.htm#1017047">3.1 Overview </a></font></font> <dl>
<dd> <a name="937310"> </a><font face="Times, serif"><a href="3resboot.htm#1017050">3.1.1 Block Diagram </a></font>
<dd> <a name="937312"> </a><font face="Times, serif"><a href="3resboot.htm#1017055">3.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937314"> </a><font face="Arial, sans-serif"><a href="3resboot.htm#1019441">3.2 Dependencies </a></font></font> <dl>
<dd> <a name="937316"> </a><font face="Times, serif"><a href="3resboot.htm#1017989">3.2.1 I/O Pins </a></font>
<dd> <a name="937318"> </a><font face="Times, serif"><a href="3resboot.htm#1018046">3.2.2 Clocks </a></font>
<dd> <a name="937320"> </a><font face="Times, serif"><a href="3resboot.htm#1020945">3.2.3 Other Registers </a></font>
<dd> <a name="937322"> </a><font face="Times, serif"><a href="3resboot.htm#1017204">3.2.4 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937324"> </a><font face="Arial, sans-serif"><a href="3resboot.htm#1021018">3.3 Operation </a></font></font> <dd> <font size="2"><a name="937326"> </a><font face="Arial, sans-serif"><a href="3resboot.htm#1021564">3.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937328"> </a><font face="Arial, sans-serif"><a href="4sysmgmt.htm#1008005">4. System Management </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937330"> </a><font face="Arial, sans-serif"><a href="4sysmgmt.htm#1017047">4.1 Overview </a></font></font> <dl>
<dd> <a name="937332"> </a><font face="Times, serif"><a href="4sysmgmt.htm#1017050">4.1.1 Block Diagram </a></font>
<dd> <a name="937334"> </a><font face="Times, serif"><a href="4sysmgmt.htm#1022824">4.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937336"> </a><font face="Arial, sans-serif"><a href="4sysmgmt.htm#1022660">4.2 Dependencies </a></font></font> <dl>
<dd> <a name="937338"> </a><font face="Times, serif"><a href="4sysmgmt.htm#1017989">4.2.1 I/O Pins </a></font>
<dd> <a name="937340"> </a><font face="Times, serif"><a href="4sysmgmt.htm#1018046">4.2.2 Clocks </a></font>
<dd> <a name="937342"> </a><font face="Times, serif"><a href="4sysmgmt.htm#1017204">4.2.3 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937344"> </a><font face="Arial, sans-serif"><a href="4sysmgmt.htm#1023142">4.3 Operation </a></font></font> <dl>
<dd> <a name="937346"> </a><font face="Times, serif"><a href="4sysmgmt.htm#1023087">4.3.1 Periodic Interrupt </a></font>
<dd> <a name="937348"> </a><font face="Times, serif"><a href="4sysmgmt.htm#1023464">4.3.2 Real-Time Clock </a></font>
<dd> <a name="937350"> </a><font face="Times, serif"><a href="4sysmgmt.htm#1023149">4.3.3 Watchdog Timer </a></font>
<dd> <a name="937352"> </a><font face="Times, serif"><a href="4sysmgmt.htm#1023157">4.3.4 Secondary Watchdog Timer </a></font>
</dl>
<dd> <font size="2"><a name="937354"> </a><font face="Arial, sans-serif"><a href="4sysmgmt.htm#1021564">4.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937356"> </a><font face="Arial, sans-serif"><a href="5memory.htm#1009342">5. Memory Management </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937358"> </a><font face="Arial, sans-serif"><a href="5memory.htm#1009346">5.1 Overview </a></font></font> <dl>
<dd> <a name="937360"> </a><font face="Times, serif"><a href="5memory.htm#1009356">5.1.1 Block Diagram </a></font>
<dd> <a name="937362"> </a><font face="Times, serif"><a href="5memory.htm#1009376">5.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937364"> </a><font face="Arial, sans-serif"><a href="5memory.htm#1009399">5.2 Dependencies </a></font></font> <dl>
<dd> <a name="937366"> </a><font face="Times, serif"><a href="5memory.htm#1009400">5.2.1 I/O Pins </a></font>
<dd> <a name="937368"> </a><font face="Times, serif"><a href="5memory.htm#1013588">5.2.2 Clocks </a></font>
<dd> <a name="937370"> </a><font face="Times, serif"><a href="5memory.htm#1013612">5.2.3 Other Registers </a></font>
<dd> <a name="937372"> </a><font face="Times, serif"><a href="5memory.htm#1009626">5.2.4 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937374"> </a><font face="Arial, sans-serif"><a href="5memory.htm#1016122">5.3 Operation </a></font></font> <dl>
<dd> <a name="937376"> </a><font face="Times, serif"><a href="5memory.htm#1016125">5.3.1 Memory Management Unit (MMU) </a></font>
<dd> <a name="937378"> </a><font face="Times, serif"><a href="5memory.htm#1016132">5.3.2 8-bit Operation </a></font>
<dd> <a name="937380"> </a><font face="Times, serif"><a href="5memory.htm#1013953">5.3.3 16-bit and Page Modes </a></font>
<dd> <a name="937382"> </a><font face="Times, serif"><a href="5memory.htm#1012260">5.3.4 Separate Instruction and Data Space </a></font>
<dd> <a name="937384"> </a><font face="Times, serif"><a href="5memory.htm#1013637">5.3.5 Memory Protection </a></font>
<dd> <a name="937386"> </a><font face="Times, serif"><a href="5memory.htm#1028968">5.3.6 Stack Protection </a></font>
</dl>
<dd> <font size="2"><a name="937388"> </a><font face="Arial, sans-serif"><a href="5memory.htm#1015827">5.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937390"> </a><font face="Arial, sans-serif"><a href="6interpt.htm#1014326">6. Interrupts </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937392"> </a><font face="Arial, sans-serif"><a href="6interpt.htm#1014327">6.1 Overview </a></font></font> <dd> <font size="2"><a name="937394"> </a><font face="Arial, sans-serif"><a href="6interpt.htm#1015603">6.2 Operation </a></font></font> <dd> <font size="2"><a name="937396"> </a><font face="Arial, sans-serif"><a href="6interpt.htm#1016270">6.3 Interrupt Tables </a></font></font></dl>
<h3>
<a name="937398"> </a><font face="Arial, sans-serif"><a href="7extintp.htm#1017575">7. External Interrupts </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937400"> </a><font face="Arial, sans-serif"><a href="7extintp.htm#1017576">7.1 Overview </a></font></font> <dd> <font size="2"><a name="937402"> </a><font face="Arial, sans-serif"><a href="7extintp.htm#1018005">7.2 Block Diagram </a></font></font> <dl>
<dd> <a name="937404"> </a><font face="Times, serif"><a href="7extintp.htm#1006717">7.2.1 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937406"> </a><font face="Arial, sans-serif"><a href="7extintp.htm#1006718">7.3 Dependencies </a></font></font> <dl>
<dd> <a name="937408"> </a><font face="Times, serif"><a href="7extintp.htm#1007536">7.3.1 I/O Pins </a></font>
<dd> <a name="937410"> </a><font face="Times, serif"><a href="7extintp.htm#1007541">7.3.2 Clocks </a></font>
<dd> <a name="937412"> </a><font face="Times, serif"><a href="7extintp.htm#1007570">7.3.3 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937414"> </a><font face="Arial, sans-serif"><a href="7extintp.htm#1022462">7.4 Operation </a></font></font> <dl>
<dd> <a name="937416"> </a><font face="Times, serif"><a href="7extintp.htm#1018213">7.4.1 Example ISR </a></font>
</dl>
<dd> <font size="2"><a name="937418"> </a><font face="Arial, sans-serif"><a href="7extintp.htm#1006725">7.5 Register Descriptions </a></font></font></dl>
<h3>
<a name="937420"> </a><font face="Arial, sans-serif"><a href="8pporta.htm#1006621">8. Parallel Port A </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937422"> </a><font face="Arial, sans-serif"><a href="8pporta.htm#1006622">8.1 Overview </a></font></font> <dl>
<dd> <a name="937424"> </a><font face="Times, serif"><a href="8pporta.htm#1006623">8.1.1 Block Diagram </a></font>
<dd> <a name="937426"> </a><font face="Times, serif"><a href="8pporta.htm#1011395">8.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937428"> </a><font face="Arial, sans-serif"><a href="8pporta.htm#1006625">8.2 Dependencies </a></font></font> <dl>
<dd> <a name="937430"> </a><font face="Times, serif"><a href="8pporta.htm#1007317">8.2.1 I/O Pins </a></font>
<dd> <a name="937432"> </a><font face="Times, serif"><a href="8pporta.htm#1007252">8.2.2 Clocks </a></font>
<dd> <a name="937434"> </a><font face="Times, serif"><a href="8pporta.htm#1007263">8.2.3 Other Registers </a></font>
<dd> <a name="937436"> </a><font face="Times, serif"><a href="8pporta.htm#1007264">8.2.4 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937438"> </a><font face="Arial, sans-serif"><a href="8pporta.htm#1006630">8.3 Operation </a></font></font> <dd> <font size="2"><a name="937440"> </a><font face="Arial, sans-serif"><a href="8pporta.htm#1007782">8.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937442"> </a><font face="Arial, sans-serif"><a href="9pportb.htm#1006639">9. Parallel Port B </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937444"> </a><font face="Arial, sans-serif"><a href="9pportb.htm#1006640">9.1 Overview </a></font></font> <dl>
<dd> <a name="937446"> </a><font face="Times, serif"><a href="9pportb.htm#1006641">9.1.1 Block Diagram </a></font>
<dd> <a name="937448"> </a><font face="Times, serif"><a href="9pportb.htm#1006642">9.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937450"> </a><font face="Arial, sans-serif"><a href="9pportb.htm#1007294">9.2 Dependencies </a></font></font> <dl>
<dd> <a name="937452"> </a><font face="Times, serif"><a href="9pportb.htm#1007313">9.2.1 I/O Pins </a></font>
<dd> <a name="937454"> </a><font face="Times, serif"><a href="9pportb.htm#1007296">9.2.2 Clocks </a></font>
<dd> <a name="937456"> </a><font face="Times, serif"><a href="9pportb.htm#1007307">9.2.3 Other Registers </a></font>
<dd> <a name="937458"> </a><font face="Times, serif"><a href="9pportb.htm#1007308">9.2.4 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937460"> </a><font face="Arial, sans-serif"><a href="9pportb.htm#1007752">9.3 Operation </a></font></font> <dd> <font size="2"><a name="937462"> </a><font face="Arial, sans-serif"><a href="9pportb.htm#1011372">9.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937464"> </a><font face="Arial, sans-serif"><a href="10pportc.htm#1007680">10. Parallel Port C </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937466"> </a><font face="Arial, sans-serif"><a href="10pportc.htm#1007681">10.1 Overview </a></font></font> <dl>
<dd> <a name="937468"> </a><font face="Times, serif"><a href="10pportc.htm#1007685">10.1.1 Block Diagram </a></font>
<dd> <a name="937470"> </a><font face="Times, serif"><a href="10pportc.htm#1006667">10.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937472"> </a><font face="Arial, sans-serif"><a href="10pportc.htm#1006668">10.2 Dependencies </a></font></font> <dl>
<dd> <a name="937474"> </a><font face="Times, serif"><a href="10pportc.htm#1007348">10.2.1 I/O Pins </a></font>
<dd> <a name="937476"> </a><font face="Times, serif"><a href="10pportc.htm#1007351">10.2.2 Clocks </a></font>
<dd> <a name="937478"> </a><font face="Times, serif"><a href="10pportc.htm#1007362">10.2.3 Other Registers </a></font>
<dd> <a name="937480"> </a><font face="Times, serif"><a href="10pportc.htm#1007363">10.2.4 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937482"> </a><font face="Arial, sans-serif"><a href="10pportc.htm#1007396">10.3 Operation </a></font></font> <dd> <font size="2"><a name="937484"> </a><font face="Arial, sans-serif"><a href="10pportc.htm#1011400">10.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937486"> </a><font face="Arial, sans-serif"><a href="11pportd.htm#1006689">11. Parallel Port D </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937488"> </a><font face="Arial, sans-serif"><a href="11pportd.htm#1006690">11.1 Overview </a></font></font> <dl>
<dd> <a name="937490"> </a><font face="Times, serif"><a href="11pportd.htm#1018156">11.1.1 Block Diagram </a></font>
<dd> <a name="937492"> </a><font face="Times, serif"><a href="11pportd.htm#1006692">11.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937494"> </a><font face="Arial, sans-serif"><a href="11pportd.htm#1006693">11.2 Dependencies </a></font></font> <dl>
<dd> <a name="937496"> </a><font face="Times, serif"><a href="11pportd.htm#1007432">11.2.1 I/O Pins </a></font>
<dd> <a name="937498"> </a><font face="Times, serif"><a href="11pportd.htm#1007437">11.2.2 Clocks </a></font>
<dd> <a name="937500"> </a><font face="Times, serif"><a href="11pportd.htm#1007453">11.2.3 Other Registers </a></font>
<dd> <a name="937502"> </a><font face="Times, serif"><a href="11pportd.htm#1007454">11.2.4 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937504"> </a><font face="Arial, sans-serif"><a href="11pportd.htm#1006698">11.3 Operation </a></font></font> <dd> <font size="2"><a name="937506"> </a><font face="Arial, sans-serif"><a href="11pportd.htm#1006700">11.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937508"> </a><font face="Arial, sans-serif"><a href="12pporte.htm#1006714">12. Parallel Port E </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937510"> </a><font face="Arial, sans-serif"><a href="12pporte.htm#1006715">12.1 Overview </a></font></font> <dl>
<dd> <a name="937512"> </a><font face="Times, serif"><a href="12pporte.htm#1017971">12.1.1 Block Diagram </a></font>
<dd> <a name="937514"> </a><font face="Times, serif"><a href="12pporte.htm#1006717">12.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937516"> </a><font face="Arial, sans-serif"><a href="12pporte.htm#1006718">12.2 Dependencies </a></font></font> <dl>
<dd> <a name="937518"> </a><font face="Times, serif"><a href="12pporte.htm#1007536">12.2.1 I/O Pins </a></font>
<dd> <a name="937520"> </a><font face="Times, serif"><a href="12pporte.htm#1007541">12.2.2 Clocks </a></font>
<dd> <a name="937522"> </a><font face="Times, serif"><a href="12pporte.htm#1007569">12.2.3 Other Registers </a></font>
<dd> <a name="937524"> </a><font face="Times, serif"><a href="12pporte.htm#1007570">12.2.4 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937526"> </a><font face="Arial, sans-serif"><a href="12pporte.htm#1006723">12.3 Operation </a></font></font> <dd> <font size="2"><a name="937528"> </a><font face="Arial, sans-serif"><a href="12pporte.htm#1006725">12.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937530"> </a><font face="Arial, sans-serif"><a href="13timera.htm#1008005">13. Timer A </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937532"> </a><font face="Arial, sans-serif"><a href="13timera.htm#1008797">13.1 Overview </a></font></font> <dl>
<dd> <a name="937534"> </a><font face="Times, serif"><a href="13timera.htm#1008891">13.1.1 Block Diagram </a></font>
<dd> <a name="937536"> </a><font face="Times, serif"><a href="13timera.htm#1009033">13.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937538"> </a><font face="Arial, sans-serif"><a href="13timera.htm#1009034">13.2 Dependencies </a></font></font> <dl>
<dd> <a name="937540"> </a><font face="Times, serif"><a href="13timera.htm#1009035">13.2.1 I/O Pins </a></font>
<dd> <a name="937542"> </a><font face="Times, serif"><a href="13timera.htm#1009037">13.2.2 Clocks </a></font>
<dd> <a name="937544"> </a><font face="Times, serif"><a href="13timera.htm#1009048">13.2.3 Other Registers </a></font>
<dd> <a name="937546"> </a><font face="Times, serif"><a href="13timera.htm#1009049">13.2.4 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937548"> </a><font face="Arial, sans-serif"><a href="13timera.htm#1009091">13.3 Operation </a></font></font> <dl>
<dd> <a name="937550"> </a><font face="Times, serif"><a href="13timera.htm#1012287">13.3.1 Handling Interrupts </a></font>
<dd> <a name="937552"> </a><font face="Times, serif"><a href="13timera.htm#1012513">13.3.2 Example ISR </a></font>
</dl>
<dd> <font size="2"><a name="937554"> </a><font face="Arial, sans-serif"><a href="13timera.htm#1009154">13.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937556"> </a><font face="Arial, sans-serif"><a href="14timerb.htm#1008030">14. Timer B </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937558"> </a><font face="Arial, sans-serif"><a href="14timerb.htm#1008031">14.1 Overview </a></font></font> <dl>
<dd> <a name="937560"> </a><font face="Times, serif"><a href="14timerb.htm#1008032">14.1.1 Block Diagram </a></font>
<dd> <a name="937562"> </a><font face="Times, serif"><a href="14timerb.htm#1008033">14.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937564"> </a><font face="Arial, sans-serif"><a href="14timerb.htm#1008034">14.2 Dependencies </a></font></font> <dl>
<dd> <a name="937566"> </a><font face="Times, serif"><a href="14timerb.htm#1008035">14.2.1 I/O Pins </a></font>
<dd> <a name="937568"> </a><font face="Times, serif"><a href="14timerb.htm#1008036">14.2.2 Clocks </a></font>
<dd> <a name="937570"> </a><font face="Times, serif"><a href="14timerb.htm#1012344">14.2.3 Other Registers </a></font>
<dd> <a name="937572"> </a><font face="Times, serif"><a href="14timerb.htm#1008047">14.2.4 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937574"> </a><font face="Arial, sans-serif"><a href="14timerb.htm#1008048">14.3 Operation </a></font></font> <dl>
<dd> <a name="937576"> </a><font face="Times, serif"><a href="14timerb.htm#1012463">14.3.1 Handling Interrupts </a></font>
<dd> <a name="937578"> </a><font face="Times, serif"><a href="14timerb.htm#1008049">14.3.2 Example ISR </a></font>
</dl>
<dd> <font size="2"><a name="937580"> </a><font face="Arial, sans-serif"><a href="14timerb.htm#1008050">14.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937582"> </a><font face="Arial, sans-serif"><a href="15timerc.htm#1008030">15. Timer C </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937584"> </a><font face="Arial, sans-serif"><a href="15timerc.htm#1008031">15.1 Overview </a></font></font> <dl>
<dd> <a name="937586"> </a><font face="Times, serif"><a href="15timerc.htm#1008032">15.1.1 Block Diagram </a></font>
<dd> <a name="937588"> </a><font face="Times, serif"><a href="15timerc.htm#1008033">15.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937590"> </a><font face="Arial, sans-serif"><a href="15timerc.htm#1008034">15.2 Dependencies </a></font></font> <dl>
<dd> <a name="937592"> </a><font face="Times, serif"><a href="15timerc.htm#1008035">15.2.1 I/O Pins </a></font>
<dd> <a name="937594"> </a><font face="Times, serif"><a href="15timerc.htm#1008036">15.2.2 Clocks </a></font>
<dd> <a name="937596"> </a><font face="Times, serif"><a href="15timerc.htm#1012344">15.2.3 Other Registers </a></font>
<dd> <a name="937598"> </a><font face="Times, serif"><a href="15timerc.htm#1008047">15.2.4 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937600"> </a><font face="Arial, sans-serif"><a href="15timerc.htm#1008048">15.3 Operation </a></font></font> <dl>
<dd> <a name="937602"> </a><font face="Times, serif"><a href="15timerc.htm#1018407">15.3.1 Handling Interrupts </a></font>
<dd> <a name="937604"> </a><font face="Times, serif"><a href="15timerc.htm#1018463">15.3.2 Example ISR </a></font>
</dl>
<dd> <font size="2"><a name="937606"> </a><font face="Arial, sans-serif"><a href="15timerc.htm#1008050">15.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937608"> </a><font face="Arial, sans-serif"><a href="16serad.htm#1008005">16. Serial Ports A – D </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937610"> </a><font face="Arial, sans-serif"><a href="16serad.htm#1017415">16.1 Overview </a></font></font> <dl>
<dd> <a name="937612"> </a><font face="Times, serif"><a href="16serad.htm#1008891">16.1.1 Block Diagram </a></font>
<dd> <a name="937614"> </a><font face="Times, serif"><a href="16serad.htm#1009033">16.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937616"> </a><font face="Arial, sans-serif"><a href="16serad.htm#1018142">16.2 Dependencies </a></font></font> <dl>
<dd> <a name="937618"> </a><font face="Times, serif"><a href="16serad.htm#1018143">16.2.1 I/O Pins </a></font>
<dd> <a name="937620"> </a><font face="Times, serif"><a href="16serad.htm#1009037">16.2.2 Clocks </a></font>
<dd> <a name="937622"> </a><font face="Times, serif"><a href="16serad.htm#1009048">16.2.3 Other Registers </a></font>
<dd> <a name="937624"> </a><font face="Times, serif"><a href="16serad.htm#1009049">16.2.4 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937626"> </a><font face="Arial, sans-serif"><a href="16serad.htm#1009091">16.3 Operation </a></font></font> <dl>
<dd> <a name="937628"> </a><font face="Times, serif"><a href="16serad.htm#1009096">16.3.1 Asynchronous Mode </a></font>
<dd> <a name="937630"> </a><font face="Times, serif"><a href="16serad.htm#1018461">16.3.2 Clocked Serial Mode </a></font>
</dl>
<dd> <font size="2"><a name="937632"> </a><font face="Arial, sans-serif"><a href="16serad.htm#1018453">16.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937634"> </a><font face="Arial, sans-serif"><a href="17seref.htm#1008005">17. Serial Ports E – F </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937636"> </a><font face="Arial, sans-serif"><a href="17seref.htm#1017415">17.1 Overview </a></font></font> <dl>
<dd> <a name="937638"> </a><font face="Times, serif"><a href="17seref.htm#1019576">17.1.1 Block Diagram </a></font>
<dd> <a name="937640"> </a><font face="Times, serif"><a href="17seref.htm#1009033">17.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937642"> </a><font face="Arial, sans-serif"><a href="17seref.htm#1018142">17.2 Dependencies </a></font></font> <dl>
<dd> <a name="937644"> </a><font face="Times, serif"><a href="17seref.htm#1018143">17.2.1 I/O Pins </a></font>
<dd> <a name="937646"> </a><font face="Times, serif"><a href="17seref.htm#1009037">17.2.2 Clocks </a></font>
<dd> <a name="937648"> </a><font face="Times, serif"><a href="17seref.htm#1009048">17.2.3 Other Registers </a></font>
<dd> <a name="937650"> </a><font face="Times, serif"><a href="17seref.htm#1009049">17.2.4 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937652"> </a><font face="Arial, sans-serif"><a href="17seref.htm#1009091">17.3 Operation </a></font></font> <dl>
<dd> <a name="937654"> </a><font face="Times, serif"><a href="17seref.htm#1009096">17.3.1 Asynchronous Mode </a></font>
<dd> <a name="937656"> </a><font face="Times, serif"><a href="17seref.htm#1018735">17.3.2 HDLC Mode </a></font>
<dd> <a name="937658"> </a><font face="Times, serif"><a href="17seref.htm#1018384">17.3.3 More on Clock Synchronization and Data Encoding </a></font>
</dl>
<dd> <font size="2"><a name="937660"> </a><font face="Arial, sans-serif"><a href="17seref.htm#1018453">17.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937662"> </a><font face="Arial, sans-serif"><a href="18slavep.htm#1008005">18. Slave Port </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937664"> </a><font face="Arial, sans-serif"><a href="18slavep.htm#1017047">18.1 Overview </a></font></font> <dl>
<dd> <a name="937666"> </a><font face="Times, serif"><a href="18slavep.htm#1017050">18.1.1 Block Diagram </a></font>
<dd> <a name="937668"> </a><font face="Times, serif"><a href="18slavep.htm#1017055">18.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937670"> </a><font face="Arial, sans-serif"><a href="18slavep.htm#1019441">18.2 Dependencies </a></font></font> <dl>
<dd> <a name="937672"> </a><font face="Times, serif"><a href="18slavep.htm#1017989">18.2.1 I/O Pins </a></font>
<dd> <a name="937674"> </a><font face="Times, serif"><a href="18slavep.htm#1018046">18.2.2 Clocks </a></font>
<dd> <a name="937676"> </a><font face="Times, serif"><a href="18slavep.htm#1017204">18.2.3 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937678"> </a><font face="Arial, sans-serif"><a href="18slavep.htm#1017206">18.3 Operation </a></font></font> <dl>
<dd> <a name="937680"> </a><font face="Times, serif"><a href="18slavep.htm#1018292">18.3.1 Master Setup </a></font>
<dd> <a name="937682"> </a><font face="Times, serif"><a href="18slavep.htm#1018400">18.3.2 Slave Setup </a></font>
<dd> <a name="937684"> </a><font face="Times, serif"><a href="18slavep.htm#1018222">18.3.3 Master/Slave Communication </a></font>
<dd> <a name="937686"> </a><font face="Times, serif"><a href="18slavep.htm#1018226">18.3.4 Slave/Master Communication </a></font>
<dd> <a name="937688"> </a><font face="Times, serif"><a href="18slavep.htm#1017211">18.3.5 Handling Interrupts </a></font>
<dd> <a name="937690"> </a><font face="Times, serif"><a href="18slavep.htm#1017217">18.3.6 Example ISR </a></font>
<dd> <a name="937692"> </a><font face="Times, serif"><a href="18slavep.htm#1019001">18.3.7 Other Configurations </a></font>
<dd> <a name="937694"> </a><font face="Times, serif"><a href="18slavep.htm#1019002">18.3.8 Timing Diagrams </a></font>
</dl>
<dd> <font size="2"><a name="937696"> </a><font face="Arial, sans-serif"><a href="18slavep.htm#1017221">18.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937698"> </a><font face="Arial, sans-serif"><a href="19dma.htm#1036380">19. DMA Channels </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937700"> </a><font face="Arial, sans-serif"><a href="19dma.htm#1036381">19.1 Overview </a></font></font> <dl>
<dd> <a name="937702"> </a><font face="Times, serif"><a href="19dma.htm#1017050">19.1.1 Block Diagram </a></font>
<dd> <a name="937704"> </a><font face="Times, serif"><a href="19dma.htm#1017055">19.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937706"> </a><font face="Arial, sans-serif"><a href="19dma.htm#1019441">19.2 Dependencies </a></font></font> <dl>
<dd> <a name="937708"> </a><font face="Times, serif"><a href="19dma.htm#1017989">19.2.1 I/O Pins </a></font>
<dd> <a name="937710"> </a><font face="Times, serif"><a href="19dma.htm#1018046">19.2.2 Clocks </a></font>
<dd> <a name="937712"> </a><font face="Times, serif"><a href="19dma.htm#1021410">19.2.3 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937714"> </a><font face="Arial, sans-serif"><a href="19dma.htm#1021412">19.3 Operation </a></font></font> <dl>
<dd> <a name="937716"> </a><font face="Times, serif"><a href="19dma.htm#1025635">19.3.1 Handling Interrupts </a></font>
<dd> <a name="937718"> </a><font face="Times, serif"><a href="19dma.htm#1025637">19.3.2 Example ISR </a></font>
<dd> <a name="937720"> </a><font face="Times, serif"><a href="19dma.htm#1021524">19.3.3 DMA Priority with the Processor </a></font>
<dd> <a name="937722"> </a><font face="Times, serif"><a href="19dma.htm#1025730">19.3.4 DMA Channel Priority </a></font>
<dd> <a name="937724"> </a><font face="Times, serif"><a href="19dma.htm#1024860">19.3.5 Buffer Descriptor Modes </a></font>
<dd> <a name="937726"> </a><font face="Times, serif"><a href="19dma.htm#1024868">19.3.5.1 Single Buffer </a></font>
<dd> <a name="937728"> </a><font face="Times, serif"><a href="19dma.htm#1024872">19.3.5.2 Buffer Array </a></font>
<dd> <a name="937730"> </a><font face="Times, serif"><a href="19dma.htm#1024888">19.3.5.3 Linked List </a></font>
<dd> <a name="937732"> </a><font face="Times, serif"><a href="19dma.htm#1024944">19.3.5.4 Circular Queue </a></font>
<dd> <a name="937734"> </a><font face="Times, serif"><a href="19dma.htm#1024905">19.3.5.5 Linked Array </a></font>
<dd> <a name="937736"> </a><font face="Times, serif"><a href="19dma.htm#1024997">19.3.6 DMA with Peripherals </a></font>
<dd> <a name="937738"> </a><font face="Times, serif"><a href="19dma.htm#1025384">19.3.6.1 DMA with HDLC Serial Ports </a></font>
<dd> <a name="937740"> </a><font face="Times, serif"><a href="19dma.htm#1025376">19.3.6.2 DMA with Ethernet </a></font>
<dd> <a name="937742"> </a><font face="Times, serif"><a href="19dma.htm#1025379">19.3.6.3 DMA with PWM and Timer C </a></font>
<dd> <a name="937744"> </a><font face="Times, serif"><a href="19dma.htm#1040183">19.3.7 DMA Bug Workarounds (Appendix B.2) </a></font>
<dd> <a name="937746"> </a><font face="Times, serif"><a href="19dma.htm#1039947">19.3.7.1 DMA/HDLC/Ethernet Interaction </a></font>
<dd> <a name="937748"> </a><font face="Times, serif"><a href="19dma.htm#1040065">19.3.8 DMA/Block Copy Interaction </a></font>
<dd> <a name="937750"> </a><font face="Times, serif"><a href="19dma.htm#1040132">19.3.9 Single-Byte DMA Requests to internal I/O Registers </a></font>
</dl>
<dd> <font size="2"><a name="937752"> </a><font face="Arial, sans-serif"><a href="19dma.htm#1022553">19.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937754"> </a><font face="Arial, sans-serif"><a href="20ethern.htm#992177">20. 10Base-T Ethernet </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937756"> </a><font face="Arial, sans-serif"><a href="20ethern.htm#1011553">20.1 Overview </a></font></font> <dl>
<dd> <a name="937758"> </a><font face="Times, serif"><a href="20ethern.htm#1011565">20.1.1 Block Diagram </a></font>
<dd> <a name="937760"> </a><font face="Times, serif"><a href="20ethern.htm#1011901">20.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937762"> </a><font face="Arial, sans-serif"><a href="20ethern.htm#1011902">20.2 Dependencies </a></font></font> <dl>
<dd> <a name="937764"> </a><font face="Times, serif"><a href="20ethern.htm#1011903">20.2.1 I/O Pins </a></font>
<dd> <a name="937766"> </a><font face="Times, serif"><a href="20ethern.htm#1011908">20.2.2 Clocks </a></font>
<dd> <a name="937768"> </a><font face="Times, serif"><a href="20ethern.htm#1011921">20.2.3 Other Registers </a></font>
<dd> <a name="937770"> </a><font face="Times, serif"><a href="20ethern.htm#1011922">20.2.4 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937772"> </a><font face="Arial, sans-serif"><a href="20ethern.htm#1011926">20.3 Operation </a></font></font> <dl>
<dd> <a name="937774"> </a><font face="Times, serif"><a href="20ethern.htm#1011928">20.3.1 Setup </a></font>
<dd> <a name="937776"> </a><font face="Times, serif"><a href="20ethern.htm#1011937">20.3.2 Transmit </a></font>
<dd> <a name="937778"> </a><font face="Times, serif"><a href="20ethern.htm#1011943">20.3.3 Receive </a></font>
<dd> <a name="937780"> </a><font face="Times, serif"><a href="20ethern.htm#1011949">20.3.4 Handling Interrupts </a></font>
<dd> <a name="937782"> </a><font face="Times, serif"><a href="20ethern.htm#1021334">20.3.5 Multicast Addressing </a></font>
</dl>
<dd> <font size="2"><a name="937784"> </a><font face="Arial, sans-serif"><a href="20ethern.htm#1012120">20.4 Ethernet Interface Circuit </a></font></font> <dd> <font size="2"><a name="937786"> </a><font face="Arial, sans-serif"><a href="20ethern.htm#1012193">20.5 Register Descriptions </a></font></font></dl>
<h3>
<a name="937788"> </a><font face="Arial, sans-serif"><a href="21incapt.htm#992179">21. Input Capture </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937790"> </a><font face="Arial, sans-serif"><a href="21incapt.htm#992778">21.1 Overview </a></font></font> <dl>
<dd> <a name="937792"> </a><font face="Times, serif"><a href="21incapt.htm#1024154">21.1.1 Input-Capture Mode </a></font>
<dd> <a name="937794"> </a><font face="Times, serif"><a href="21incapt.htm#1024251">21.1.2 Input-Count Mode </a></font>
<dd> <a name="937796"> </a><font face="Times, serif"><a href="21incapt.htm#996147">21.1.3 Block Diagram </a></font>
<dd> <a name="937798"> </a><font face="Times, serif"><a href="21incapt.htm#996260">21.1.4 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937800"> </a><font face="Arial, sans-serif"><a href="21incapt.htm#995882">21.2 Dependencies </a></font></font> <dl>
<dd> <a name="937802"> </a><font face="Times, serif"><a href="21incapt.htm#996026">21.2.1 I/O Pins </a></font>
<dd> <a name="937804"> </a><font face="Times, serif"><a href="21incapt.htm#995700">21.2.2 Clocks </a></font>
<dd> <a name="937806"> </a><font face="Times, serif"><a href="21incapt.htm#1006503">21.2.3 Other Registers </a></font>
<dd> <a name="937808"> </a><font face="Times, serif"><a href="21incapt.htm#1006490">21.2.4 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937810"> </a><font face="Arial, sans-serif"><a href="21incapt.htm#1011893">21.3 Operation </a></font></font> <dl>
<dd> <a name="937812"> </a><font face="Times, serif"><a href="21incapt.htm#1011653">21.3.1 Input-Capture Channel </a></font>
<dd> <a name="937814"> </a><font face="Times, serif"><a href="21incapt.htm#995833">21.3.2 Handling Interrupts </a></font>
<dd> <a name="937816"> </a><font face="Times, serif"><a href="21incapt.htm#1011972">21.3.3 Example ISR </a></font>
<dd> <a name="937818"> </a><font face="Times, serif"><a href="21incapt.htm#996038">21.3.4 Capture Mode </a></font>
<dd> <a name="937820"> </a><font face="Times, serif"><a href="21incapt.htm#996045">21.3.5 Count Mode </a></font>
</dl>
<dd> <font size="2"><a name="937822"> </a><font face="Arial, sans-serif"><a href="21incapt.htm#995268">21.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937824"> </a><font face="Arial, sans-serif"><a href="22quad.htm#992181">22. Quadrature Decoder </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937826"> </a><font face="Arial, sans-serif"><a href="22quad.htm#996326">22.1 Overview </a></font></font> <dl>
<dd> <a name="937828"> </a><font face="Times, serif"><a href="22quad.htm#996331">22.1.1 Block Diagram </a></font>
<dd> <a name="937830"> </a><font face="Times, serif"><a href="22quad.htm#996443">22.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937832"> </a><font face="Arial, sans-serif"><a href="22quad.htm#996444">22.2 Dependencies </a></font></font> <dl>
<dd> <a name="937834"> </a><font face="Times, serif"><a href="22quad.htm#996445">22.2.1 I/O Pins </a></font>
<dd> <a name="937836"> </a><font face="Times, serif"><a href="22quad.htm#996448">22.2.2 Clocks </a></font>
<dd> <a name="937838"> </a><font face="Times, serif"><a href="22quad.htm#1006454">22.2.3 Other Registers </a></font>
<dd> <a name="937840"> </a><font face="Times, serif"><a href="22quad.htm#996450">22.2.4 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937842"> </a><font face="Arial, sans-serif"><a href="22quad.htm#996458">22.3 Operation </a></font></font> <dl>
<dd> <a name="937844"> </a><font face="Times, serif"><a href="22quad.htm#1011893">22.3.1 Handling Interrupts </a></font>
<dd> <a name="937846"> </a><font face="Times, serif"><a href="22quad.htm#1011917">22.3.2 Example ISR </a></font>
</dl>
<dd> <font size="2"><a name="937848"> </a><font face="Arial, sans-serif"><a href="22quad.htm#996935">22.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937850"> </a><font face="Arial, sans-serif"><a href="23pwm.htm#1016366">23. Pulse Width Modulator </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937852"> </a><font face="Arial, sans-serif"><a href="23pwm.htm#1016367">23.1 Overview </a></font></font> <dl>
<dd> <a name="937854"> </a><font face="Times, serif"><a href="23pwm.htm#1005622">23.1.1 Block Diagram </a></font>
<dd> <a name="937856"> </a><font face="Times, serif"><a href="23pwm.htm#1005623">23.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937858"> </a><font face="Arial, sans-serif"><a href="23pwm.htm#1005624">23.2 Dependencies </a></font></font> <dl>
<dd> <a name="937860"> </a><font face="Times, serif"><a href="23pwm.htm#1006122">23.2.1 I/O Pins </a></font>
<dd> <a name="937862"> </a><font face="Times, serif"><a href="23pwm.htm#1006125">23.2.2 Clocks </a></font>
<dd> <a name="937864"> </a><font face="Times, serif"><a href="23pwm.htm#1006281">23.2.3 Other Registers </a></font>
<dd> <a name="937866"> </a><font face="Times, serif"><a href="23pwm.htm#1006127">23.2.4 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937868"> </a><font face="Arial, sans-serif"><a href="23pwm.htm#1006507">23.3 Operation </a></font></font> <dl>
<dd> <a name="937870"> </a><font face="Times, serif"><a href="23pwm.htm#1016388">23.3.1 Handling Interrupts </a></font>
<dd> <a name="937872"> </a><font face="Times, serif"><a href="23pwm.htm#1006519">23.3.2 Example ISR </a></font>
</dl>
<dd> <font size="2"><a name="937874"> </a><font face="Arial, sans-serif"><a href="23pwm.htm#1005833">23.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937876"> </a><font face="Arial, sans-serif"><a href="24extio.htm#1017575">24. External I/O Control </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937878"> </a><font face="Arial, sans-serif"><a href="24extio.htm#1017576">24.1 Overview </a></font></font> <dl>
<dd> <a name="937880"> </a><font face="Times, serif"><a href="24extio.htm#1017595">24.1.1 Auxiliary I/O Bus </a></font>
<dd> <a name="937882"> </a><font face="Times, serif"><a href="24extio.htm#1017607">24.1.2 I/O Strobes </a></font>
<dd> <a name="937884"> </a><font face="Times, serif"><a href="24extio.htm#1017585">24.1.3 I/O Handshake </a></font>
<dd> <a name="937886"> </a><font face="Times, serif"><a href="24extio.htm#1006716">24.1.4 Block Diagram </a></font>
<dd> <a name="937888"> </a><font face="Times, serif"><a href="24extio.htm#1006717">24.1.5 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937890"> </a><font face="Arial, sans-serif"><a href="24extio.htm#1006718">24.2 Dependencies </a></font></font> <dl>
<dd> <a name="937892"> </a><font face="Times, serif"><a href="24extio.htm#1007536">24.2.1 I/O Pins </a></font>
<dd> <a name="937894"> </a><font face="Times, serif"><a href="24extio.htm#1007541">24.2.2 Clocks </a></font>
<dd> <a name="937896"> </a><font face="Times, serif"><a href="24extio.htm#1007569">24.2.3 Other Registers </a></font>
<dd> <a name="937898"> </a><font face="Times, serif"><a href="24extio.htm#1007570">24.2.4 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937900"> </a><font face="Arial, sans-serif"><a href="24extio.htm#1006723">24.3 Operation </a></font></font> <dl>
<dd> <a name="937902"> </a><font face="Times, serif"><a href="24extio.htm#1007892">24.3.1 Auxiliary I/O Bus </a></font>
<dd> <a name="937904"> </a><font face="Times, serif"><a href="24extio.htm#1017942">24.3.2 I/O Strobes </a></font>
<dd> <a name="937906"> </a><font face="Times, serif"><a href="24extio.htm#1017970">24.3.3 I/O Handshake </a></font>
</dl>
<dd> <font size="2"><a name="937908"> </a><font face="Arial, sans-serif"><a href="24extio.htm#1018455">24.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937910"> </a><font face="Arial, sans-serif"><a href="25breakp.htm#1009342">25. Breakpoints </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937912"> </a><font face="Arial, sans-serif"><a href="25breakp.htm#1009346">25.1 Overview </a></font></font> <dl>
<dd> <a name="937914"> </a><font face="Times, serif"><a href="25breakp.htm#1009356">25.1.1 Block Diagram </a></font>
<dd> <a name="937916"> </a><font face="Times, serif"><a href="25breakp.htm#1009376">25.1.2 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937918"> </a><font face="Arial, sans-serif"><a href="25breakp.htm#1009399">25.2 Dependencies </a></font></font> <dl>
<dd> <a name="937920"> </a><font face="Times, serif"><a href="25breakp.htm#1009400">25.2.1 I/O Pins </a></font>
<dd> <a name="937922"> </a><font face="Times, serif"><a href="25breakp.htm#1013588">25.2.2 Clocks </a></font>
<dd> <a name="937924"> </a><font face="Times, serif"><a href="25breakp.htm#1013612">25.2.3 Other Registers </a></font>
<dd> <a name="937926"> </a><font face="Times, serif"><a href="25breakp.htm#1009626">25.2.4 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937928"> </a><font face="Arial, sans-serif"><a href="25breakp.htm#1013630">25.3 Operation </a></font></font> <dl>
<dd> <a name="937930"> </a><font face="Times, serif"><a href="25breakp.htm#1014847">25.3.1 Handling Interrupts </a></font>
<dd> <a name="937932"> </a><font face="Times, serif"><a href="25breakp.htm#1014853">25.3.2 Example ISR </a></font>
</dl>
<dd> <font size="2"><a name="937934"> </a><font face="Arial, sans-serif"><a href="25breakp.htm#1014927">25.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937936"> </a><font face="Arial, sans-serif"><a href="26lowpow.htm#1025085">26. Low-Power Operation </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937938"> </a><font face="Arial, sans-serif"><a href="26lowpow.htm#1025086">26.1 Overview </a></font></font> <dl>
<dd> <a name="937940"> </a><font face="Times, serif"><a href="26lowpow.htm#1027307">26.1.1 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937942"> </a><font face="Arial, sans-serif"><a href="26lowpow.htm#1025728">26.2 Operation </a></font></font> <dl>
<dd> <a name="937944"> </a><font face="Times, serif"><a href="26lowpow.htm#1025097">26.2.1 Unused Pins </a></font>
<dd> <a name="937946"> </a><font face="Times, serif"><a href="26lowpow.htm#1025082">26.2.2 Clock Rates </a></font>
<dd> <a name="937948"> </a><font face="Times, serif"><a href="26lowpow.htm#1027003">26.2.3 Short Chip Selects </a></font>
<dd> <a name="937950"> </a><font face="Times, serif"><a href="26lowpow.htm#1025069">26.2.4 Self-Timed Chip Selects </a></font>
</dl>
<dd> <font size="2"><a name="937952"> </a><font face="Arial, sans-serif"><a href="26lowpow.htm#1021564">26.3 Register Descriptions </a></font></font></dl>
<h3>
<a name="937954"> </a><font face="Arial, sans-serif"><a href="27sysuse.htm#1025116">27. System/User Mode </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937956"> </a><font face="Arial, sans-serif"><a href="27sysuse.htm#1025117">27.1 Overview </a></font></font> <dl>
<dd> <a name="937958"> </a><font face="Times, serif"><a href="27sysuse.htm#1022824">27.1.1 Registers </a></font>
</dl>
<dd> <font size="2"><a name="937960"> </a><font face="Arial, sans-serif"><a href="27sysuse.htm#1022660">27.2 Dependencies </a></font></font> <dl>
<dd> <a name="937962"> </a><font face="Times, serif"><a href="27sysuse.htm#1017989">27.2.1 I/O Pins </a></font>
<dd> <a name="937964"> </a><font face="Times, serif"><a href="27sysuse.htm#1018046">27.2.2 Clocks </a></font>
<dd> <a name="937966"> </a><font face="Times, serif"><a href="27sysuse.htm#1028200">27.2.3 Other Registers </a></font>
<dd> <a name="937968"> </a><font face="Times, serif"><a href="27sysuse.htm#1017204">27.2.4 Interrupts </a></font>
</dl>
<dd> <font size="2"><a name="937970"> </a><font face="Arial, sans-serif"><a href="27sysuse.htm#1026661">27.3 Operation </a></font></font> <dl>
<dd> <a name="937972"> </a><font face="Times, serif"><a href="27sysuse.htm#1028059">27.3.1 Memory Protection Only </a></font>
<dd> <a name="937974"> </a><font face="Times, serif"><a href="27sysuse.htm#1028071">27.3.2 Mixed System/User Mode Operation </a></font>
<dd> <a name="937976"> </a><font face="Times, serif"><a href="27sysuse.htm#1028083">27.3.3 Complete Operating System </a></font>
<dd> <a name="937978"> </a><font face="Times, serif"><a href="27sysuse.htm#1027886">27.3.4 Enabling the System/User Mode </a></font>
<dd> <a name="937980"> </a><font face="Times, serif"><a href="27sysuse.htm#1028005">27.3.5 System/User Mode Instructions </a></font>
<dd> <a name="937982"> </a><font face="Times, serif"><a href="27sysuse.htm#1030453">27.3.6 System Mode Violation Interrupt </a></font>
<dd> <a name="937984"> </a><font face="Times, serif"><a href="27sysuse.htm#1025822">27.3.7 Handling Interrupts in the System/User Mode </a></font>
</dl>
<dd> <font size="2"><a name="937986"> </a><font face="Arial, sans-serif"><a href="27sysuse.htm#1027705">27.4 Register Descriptions </a></font></font></dl>
<h3>
<a name="937988"> </a><font face="Arial, sans-serif"><a href="28specs.htm#1025085">28. Specifications </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="937990"> </a><font face="Arial, sans-serif"><a href="28specs.htm#1027892">28.1 DC Characteristics </a></font></font> <dd> <font size="2"><a name="937992"> </a><font face="Arial, sans-serif"><a href="28specs.htm#1040140">28.2 AC Characteristics </a></font></font> <dd> <font size="2"><a name="937994"> </a><font face="Arial, sans-serif"><a href="28specs.htm#1031744">28.3 Memory Access Times </a></font></font> <dl>
<dd> <a name="937996"> </a><font face="Times, serif"><a href="28specs.htm#1031750">28.3.1 Memory Reads </a></font>
<dd> <a name="937998"> </a><font face="Times, serif"><a href="28specs.htm#1032353">28.3.2 Memory Writes </a></font>
<dd> <a name="938000"> </a><font face="Times, serif"><a href="28specs.htm#1034396">28.3.3 External I/O Reads </a></font>
<dd> <a name="938002"> </a><font face="Times, serif"><a href="28specs.htm#1034720">28.3.4 External I/O Writes </a></font>
<dd> <a name="938004"> </a><font face="Times, serif"><a href="28specs.htm#1041801">28.3.5 Memory Access Times </a></font>
</dl>
<dd> <font size="2"><a name="938006"> </a><font face="Arial, sans-serif"><a href="28specs.htm#1035151">28.4 Clock Speeds </a></font></font> <dl>
<dd> <a name="938008"> </a><font face="Times, serif"><a href="28specs.htm#1036808">28.4.1 Recommended Clock/Memory Configurations </a></font>
</dl>
<dd> <font size="2"><a name="938010"> </a><font face="Arial, sans-serif"><a href="28specs.htm#1036949">28.5 Power and Current Consumption </a></font></font> <dl>
<dd> <a name="938012"> </a><font face="Times, serif"><a href="28specs.htm#1036979">28.5.1 Sleepy Mode Current Consumption </a></font>
<dd> <a name="938014"> </a><font face="Times, serif"><a href="28specs.htm#1026519">28.5.2 Battery-Backed Clock Current Consumption </a></font>
</dl>
</dl>
<h3>
<a name="938016"> </a><font face="Arial, sans-serif"><a href="29pins.htm#992555">29. Package Specifications and Pinout </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="938018"> </a><font face="Arial, sans-serif"><a href="29pins.htm#992649">29.1 LQFP Package </a></font></font> <dl>
<dd> <a name="938020"> </a><font face="Times, serif"><a href="29pins.htm#992650">29.1.1 Pinout </a></font>
<dd> <a name="938022"> </a><font face="Times, serif"><a href="29pins.htm#992651">29.1.2 Mechanical Dimensions and Land Pattern </a></font>
</dl>
<dd> <font size="2"><a name="938024"> </a><font face="Arial, sans-serif"><a href="29pins.htm#992652">29.2 Ball Grid Array Package </a></font></font> <dl>
<dd> <a name="938026"> </a><font face="Times, serif"><a href="29pins.htm#992653">29.2.1 Pinout </a></font>
<dd> <a name="938028"> </a><font face="Times, serif"><a href="29pins.htm#998227">29.2.2 Mechanical Dimensions and Land Pattern </a></font>
</dl>
<dd> <font size="2"><a name="938030"> </a><font face="Arial, sans-serif"><a href="29pins.htm#998228">29.3 Rabbit Pin Descriptions </a></font></font></dl>
<h3>
<a name="938032"> </a><font face="Arial, sans-serif"><a href="aaltpinf.htm#1000265">Appendix A. Parallel Port Pins with Alternate Functions </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="938034"> </a><font face="Arial, sans-serif"><a href="aaltpinf.htm#1000687">A.1 Alternate Parallel Port Pin Outputs </a></font></font> <dd> <font size="2"><a name="938036"> </a><font face="Arial, sans-serif"><a href="aaltpinf.htm#1001127">A.2 Alternate Parallel Port Pin Inputs </a></font></font></dl>
<h3>
<a name="938038"> </a><font face="Arial, sans-serif"><a href="bissues.htm#1012029">Appendix B. Rabbit 4000 ESD Design Guidelines and Bug Workarounds </a></font>
</h3>
<dl>
<dd> <font size="2"><a name="938040"> </a><font face="Arial, sans-serif"><a href="bissues.htm#1057286">B.1 ESD Sensitivity </a></font></font> <dl>
<dd> <a name="938042"> </a><font face="Times, serif"><a href="bissues.htm#1057298">B.1.1 ESD Design Guidelines </a></font>
</dl>
<dd> <font size="2"><a name="938044"> </a><font face="Arial, sans-serif"><a href="bissues.htm#1057406">B.2 Bugs </a></font></font></dl>
<h3>
<a name="938048"> </a><font face="Arial, sans-serif"><a href="rb4000in.htm#451547">Index </a></font>
</h3>
</blockquote>
<hr>
<table align="right" border="0" cellspacing="0" cellpadding="0">
<tr>
<td align="right"><font face="Arial, Helvetica, sans-serif" size="2"><b>Rabbit Semiconductor</b></font><br>
<font face="Arial, Helvetica, sans-serif" size="1"><a href="http://www.rabbit.com/" target="_top">www.rabbit.com</a><br></font></td>
</tr>
</table>
</body>
</html>
]]>