OPI‐056T I/Oマップ・コネクタ配列表・入力回路

■I/O Map
A2 A1 A0 I/O Write I/O Read
1
1
1
1
1
1
0
0
1
0
1
0
Command to 8255A (J2)
-
-
-
(Illegal Condition)
Data from 8255A PC (J2)
Data from 8255A PB (J2)
Data from 8255A PA (J2)
0
0
0
0
1
1
0
0
1
0
1
0
Command to 8255A (J1)
-
-
-
(Illegal Condition)
Data from 8255A PC (J1)
Data from 8255A PB (J1)
Data from 8255A PA (J1)

■Connectors J1/J2
PIN# SIGNAL PIN# SIGNAL
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
PA0
PA2
PA4
PA6
PA-外部電源
PB0
PB2
PB4
PB6
PB-外部電源
PC0
PC2
PC4
PC6
PC-外部電源
-
-
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
PA1
PA3
PA5
PA7
-
PB1
PB3
PB5
PB7
-
PC1
PC3
PC5
PC7
-
-
-

■Input Circuit


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