2004 Microchip Technology Inc. DS70046C-page iii
PAGE
SECTION 1. INTRODUCTION 1-1
Introduction ...................................................................................................................................................... 1-2
Manual Objective ............................................................................................................................................. 1-2
Device Structure ............................................................................................................................................... 1-3
Development Support ...................................................................................................................................... 1-4
Style and Symbol Conventions ........................................................................................................................ 1-4
Related Documents .......................................................................................................................................... 1-6
Revision History ............................................................................................................................................... 1-7
SECTION 2. CPU 2-1
Introduction ...................................................................................................................................................... 2-2
Programmer’s Model ........................................................................................................................................ 2-4
Software Stack Pointer ..................................................................................................................................... 2-8
CPU Register Descriptions ............................................................................................................................. 2-11
Arithmetic Logic Unit (ALU) ............................................................................................................................ 2-17
DSP Engine .................................................................................................................................................... 2-18
Divide Support ................................................................................................................................................ 2-27
Instruction Flow Types ................................................................................................................................... 2-27
Loop Constructs ............................................................................................................................................. 2-30
Address Register Dependencies .................................................................................................................... 2-35
Register Maps ................................................................................................................................................ 2-38
Related Application Notes .............................................................................................................................. 2-40
Revision History ............................................................................................................................................. 2-41
SECTION 3. DATA MEMORY 3-1
Introduction ...................................................................................................................................................... 3-2
Data Space Address Generator Units (AGUs) ................................................................................................. 3-5
Modulo Addressing .......................................................................................................................................... 3-7
Bit-Reversed Addressing ............................................................................................................................... 3-14
Control Register Descriptions ......................................................................................................................... 3-18
Related Application Notes .............................................................................................................................. 3-23
Revision History ............................................................................................................................................. 3-24
SECTION 4. PROGRAM MEMORY 4-1
Program Memory Address Map ....................................................................................................................... 4-2
Program Counter .............................................................................................................................................. 4-4
Data Access from Program Memory ................................................................................................................ 4-4
Program Space Visibility from Data Space ...................................................................................................... 4-8
Program Memory Writes ................................................................................................................................ 4-10
Related Application Notes .............................................................................................................................. 4-11
Revision History ............................................................................................................................................. 4-12
SECTION 5. FLASH AND EEPROM PROGRAMMING 5-1
Introduction ...................................................................................................................................................... 5-2
Table Instruction Operation .............................................................................................................................. 5-2
Control Registers ............................................................................................................................................. 5-5
Run-Time Self-Programming (RTSP) ............................................................................................................... 5-9
Data EEPROM Programming ........................................................................................................................ 5-14
Design Tips .................................................................................................................................................... 5-20
Related Application Notes .............................................................................................................................. 5-21
Revision History ............................................................................................................................................. 5-22
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