dsp56000 Freescale Semiconductor, Inc, dsp56000 Datasheet - Page 194
dsp56000
Manufacturer Part Number
dsp56000
Description
24-bit Digital Signal Processor Family Manual
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.DSP56000.pdf
(637 pages)
- Current page: 194 of 637
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DSI/OS0 pin is an output when the processor is not in debug mode. When switching from
output to input, the pin is three-stated. During hardware reset, this pin is defined as an out-
put and it is driven low.
Note: To avoid possible glitches, an external pull-down resistor should be attached to this
pin.
MOTOROLA
56K Mod-
GENERATOR
INTERNAL
24-Bit
SWITCH
CLOCK
PLL
DATA
BUS
PERIPHERAL
MODULES
CONTROLLER
INTERRUPT
PROGRAM
GENERATION
Freescale Semiconductor, Inc.
MODC/NMI
MODB/IRQB
MODA/IRQA
RESET
Figure 10-2 DSP56K Block Diagram
ADDRESS
ON-CHIP EMULATION (OnCE) PINS
For More Information On This Product,
CONTROLLER
UNIT
PROGRAM
DECODE
Program Control Unit
ON-CHIP EMULATION (OnCE)
Go to: www.freescale.com
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
10 - 5
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