OVERVIEW
5 - 4
PROGRAM CONTROL UNIT
MOTOROLA
All of the PCU registers are read/write to facilitate system debugging. Although none of
the registers are 24 bits, they are read or written over 24-bit buses. When they are read,
the least significant bits (LSBs) are significant, and the most significant bits (MSBs) are
zeroed as appropriate. When they are written, only the appropriate LSBs are significant,
and the MSBs are written as don’t care.
CLOCK
GENERATOR
PERIPHERAL
PINS
INTERNAL
DATA
BUS
SWITCH
PROGRAM
RAM/ROM
EXPANSION
PROGRAM
INTERRUPT
CONTROLLER
PROGRAM
DECODE
CONTROLLER
PROGRAM
ADDRESS
GENERATOR
YAB
XAB
PAB
YDB
XDB
PDB
GDB
MODC/NMI
MODB/IRQB
RESET
DATA ALU
24X24+56
→
56-BIT MAC
TWO 56-BIT ACCUMULATORS
EXTERNAL
ADDRESS
BUS
SWITCH
BUS
CONTROL
EXTERNAL
DATA BUS
SWITCH
ADDRESS
D
ATA
16 BITS
24 BITS
POR
T A
MODA/IRQA
PLL
X MEMORY
RAM/ROM
EXPANSION
Y MEMORY
RAM/ROM
EXPANSION
ADDRESS
GENERATION
UNIT
OnCE™
PERIPHERAL
MODULES
EXPANSION
AREA
CONTR
OL
24-Bit
56K Mod-
Figure 5-2 DSP56K Block Diagram
Program Control Unit
Содержание DSP56K
Страница 12: ...xii LIST of TABLES MOTOROLA List of Tables Continued Table Page Number Title Number ...
Страница 13: ...MOTOROLA DSP56K FAMILY INTRODUCTION 1 1 SECTION 1 DSP56K FAMILY INTRODUCTION ...
Страница 25: ...MOTOROLA DSP56K CENTRAL ARCHITECTURE OVERVIEW 2 1 SECTION 2 DSP56K CENTRAL ARCHITECTURE OVERVIEW ...
Страница 31: ...MOTOROLA DATA ARITHMETIC LOGIC UNIT 3 1 SECTION 3 DATA ARITHMETIC LOGIC UNIT ...
Страница 50: ...DATA ALU SUMMARY 3 20 DATA ARITHMETIC LOGIC UNIT MOTOROLA ...
Страница 51: ...MOTOROLA ADDRESS GENERATION UNIT 4 1 SECTION 4 ADDRESS GENERATION UNIT ...
Страница 77: ...MOTOROLA PROGRAM CONTROL UNIT 5 1 SECTION 5 PROGRAM CONTROL UNIT ...
Страница 124: ...INSTRUCTION GROUPS 6 30 INSTRUCTION SET INTRODUCTION MOTOROLA ...
Страница 125: ...MOTOROLA PROCESSING STATES 7 1 SECTION 7 PROCESSING STATES STOP WAIT EXCEPTION NORMAL RESET ...
Страница 167: ...STOP PROCESSING STATE MOTOROLA PROCESSING STATES 7 43 ...
Страница 168: ...STOP PROCESSING STATE 7 44 PROCESSING STATES MOTOROLA ...
Страница 169: ...MOTOROLA PORT A 8 1 SECTION 8 PORT A ...
Страница 176: ...PORT A INTERFACE 8 8 PORT A MOTOROLA ...
Страница 177: ...MOTOROLA PLL CLOCK OSCILLATOR 9 1 SECTION 9 PLL CLOCK OSCILLATOR x x d Φ VCO ...
Страница 191: ...10 2 ON CHIP EMULATION OnCE MOTOROLA SECTION 10 ON CHIP EMULATION OnCE ...
Страница 218: ...USING THE OnCE MOTOROLA ON CHIP EMULATION OnCE 10 29 ...
Страница 604: ...INSTRUCTION ENCODING A 338 INSTRUCTION SET DETAILS MOTOROLA ...
Страница 605: ...MOTOROLA BENCHMARK PROGRAMS B 1 APPENDIX B BENCHMARK PROGRAMS T T T T T P1 P3 P2 P4 T T T ...
Страница 606: ...SECTION CONTENTS B 2 BENCHMARK PROGRAMS MOTOROLA SECTION B 1 INTRODUCTION 3 SECTION B 2 BENCHMARK PROGRAMS 3 ...
Страница 609: ...BENCHMARK PROGRAMS MOTOROLA BENCHMARK PROGRAMS B 5 ...
Страница 611: ...BENCHMARK PROGRAMS MOTOROLA BENCHMARK PROGRAMS B 7 ...
Страница 613: ...BENCHMARK PROGRAMS MOTOROLA BENCHMARK PROGRAMS B 9 ...
Страница 615: ...BENCHMARK PROGRAMS MOTOROLA BENCHMARK PROGRAMS B 11 ...