dsp56000 Freescale Semiconductor, Inc, dsp56000 Datasheet - Page 28
dsp56000
Manufacturer Part Number
dsp56000
Description
24-bit Digital Signal Processor Family Manual
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.DSP56000.pdf
(637 pages)
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2.3
Addresses are specified for internal X data memory and Y data memory on two unidirec-
tional 16-bit buses — X address bus (XAB) and Y address bus (YAB). Program memory
addresses are specified on the bidirectional program address bus (PAB). External mem-
2- 4
24-Bit 56K
ADDRESS BUSES
Module
GENERATOR
INTERNAL
SWITCH
CLOCK
PLL
DATA
BUS
PERIPHERAL
MODULES
CONTROLLER
INTERRUPT
PROGRAM
DSP56K CENTRAL ARCHITECTURE OVERVIEW
GENERATION
Freescale Semiconductor, Inc.
MODC/NMI
MODB/IRQB
MODA/IRQA
RESET
ADDRESS
Figure 2-1 DSP56K Block Diagram
For More Information On This Product,
CONTROLLER
UNIT
PROGRAM
DECODE
Program Control Unit
Go to: www.freescale.com
ADDRESS BUSES
EXPANSION
GENERA TOR
PROGRAM
RAM/ROM
PROGRAM
ADDRESS
YAB
XAB
PAB
YDB
XDB
PDB
GDB
TWO 56-BIT ACCUMULATORS
EXPANSION
X MEMORY
24X24 + 56 56-BIT MAC
RAM/ROM
DATA ALU
EXPANSION
Y MEMORY
RAM/ROM
EXPANSION
EXTERNAL
EXTERNAL
ADDRESS
DATA BUS
CONTROL
SWITCH
SWITCH
OnCE™
BUS
BUS
16 BITS
24 BITS
AREA
MOTOROLA
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