Motorola DSP56156 Manual page 88

Address MUX
DSP56100
CORE
Processor
Host
Interface
SSI0
SSI1
Timer
Figure 4-1 DSP56156 Input / Output Block Diagram
MOTOROLA
I/O PORT SET-UP AND PROGRAMMING
Port A
External
Port A
External
Data Switch
Port A
Bus
Control
Port B
I/O
Port C
I/O
I/O INTERFACE
Default
Function
A0-A15
D0-D15
Port A
BS
TA
PS/DS
WR
RD
R/W
BR
BG
BB
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9
PB10
PB11
PB12
PB13
PB14
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PC8
PC9
PC10
PC11
Alternate
Function
H0-H7
HA0
HA1
HA2
HR/W
HEN
HREQ
HACK
STD0
SRD0
SCK0
SC10
SC00
STD1
SRD1
SCK1
SC11
SC01
TIN
TOUT
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