– 26 –
Pin No.
Pin Name
I/O
Pin Description
90
DEC-INT
O
Demodulator LSI initial output (Not used in this set.)
91
ROM-CS
O
PROM chip enable output
92
VSS
—
GND
93
UNI-REQ
O
Not used.
94
LINK-OFF
O
BUS interface link output
95
DEC-ON
O
Not used.
96
DEC-CLR
O
Demodulator LSI reset output (Not used in this set.)
97 – 99
A21 – A23
O
Not used.
100
A20
O
External RAM, ROM address bus output
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9
2
8
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9
8
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9
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9
8
0
5
1
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1
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7
3
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