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REV.-A
Pin No.
Signal Name
In/Out
Function
8
SADO
In/Out
System (slave CPU 6303) address data bus 0:
Data is input/output synchronizing to SE sig-
nals.
9
SAD 1
In/Out
System (slave CPU 6303) address data bus 1 :
Data is input/output synchronizing to SE sig-
nals. Pins 10- 14 missing
15
SAD 7
In/Out
System (slave CPU 6303) address data bus 7:
Data is input/output synchronizing to SE sig-
nals.
16
SA8
In
System (slave CPU 6303) address data bus 8:
Data is input/output synchronizing to SE sig-
nals.
17
SA9
In
System (slave CPU 6303) address data bus 9:
Data is input/output synchronizing to SE sig-
nals.
18
SA 10
In
System (slave CPU 6303) address data bus 10:
Data is input/output synchronizing to SE sig-
nals.
19
SA 11
In
System (slave CPU 6303) address data bus 11 :
Data is input/output synchronizing to SE sig-
nals.
20
SA 12
In
System (slave CPU 6303) address data bus 12:
Data is input/output synchronizing to SE sig-
nals.
21
N/C
-
Not used.
- -
22
PCS
In
Port chip select: Provided from GAH40H
- -
23
PWR
In
Port write (write port data 0 to 7):
Provided from GAH40M.
24
PR 0
In
Port read (read port data 0 to 7):
Provided from GAH40M.
25
PAO
In
Port address 0 (address 0 of main CPU):
Selects port register.
26
PDO
In/Out
Port data (data bus of main CPU) 0
27
PO 1
In/Out
Port data (data bus of main CPU) 1
28
PO 2
In/Out
Port data (data bus of main CPU) 2
7-53
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