TABLE OF CONTENTS (Continued)
Paragraph Page
Number Title Number
xii
MPC823e REFERENCE MANUAL
MOTOROLA
15.5.5.3.1 Hierarchical Bus Interface Example ...............15-68
15.5.5.3.2 Slow Device Interface Example .....................15-68
15.6 External Master Support ...................................................................15-69
15.6.1 External Master Examples .....................................................15-73
15.6.1.1 Memory System Interface Examples ..........................15-77
15.6.2 Page Mode DRAM Interface Example ...................................15-77
15.6.3 Page Mode Extended Data-Out DRAM Interface Example ....15-89
Section 16
Communication Processor Module
16.1 Features ..............................................................................................16-1
16.2 The RISC Microcontroller ....................................................................16-4
16.2.1 RISC Microcontroller Features .................................................16-5
16.2.2 Communication Between the Microcontroller and Core ...........16-6
16.2.3 Communication Between the Microcontroller
and Peripherals .........................................................................16-6
16.2.4 Executing Microcode From RAM or ROM ................................16-7
16.2.5 RISC Configuration and Control Registers ..............................16-7
16.2.6 RISC Microcontroller Commands .............................................16-9
16.2.6.1 CPM Command Register ..............................................16-9
16.2.6.2 Command Definitions .................................................16-11
16.2.6.2.1 CPM Command Register Example ................16-13
16.2.6.3 Dual-Port RAM ...........................................................16-13
16.2.6.3.1 Buffer Descriptors ..........................................16-15
16.2.6.3.2 Parameter RAM .............................................16-15
16.2.6.4 The RISC Timer Tables ..............................................16-17
16.2.6.4.1 RISC Timer Table Parameter RAM
Memory Map ...................................................16-18
16.2.6.4.2 RISC Timer Table Entries ..............................16-22
16.2.6.4.3 The SET TIMER Command ...........................16-22
16.2.6.4.4 PWM Mode ....................................................16-22
16.2.6.5 RISC Timer Event Register ........................................16-23
16.2.6.6 RISC Timer Mask Register .........................................16-23
16.2.6.7 RISC Timer Initialization Sequence Example .............16-24
16.2.6.8 RISC Timer Interrupt Handling Example ....................16-25
16.2.6.9 RISC Timer Table Algorithm .......................................16-25
16.2.6.10 Using the Timers to Track Microcontroller Loading.....16-25
16.3 Digital Signal Processing ..................................................................16-26
16.3.1 Features .................................................................................16-26
16.3.2 DSP Operation .......................................................................16-26
16.3.2.1 Hardware ....................................................................16-27
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