Table of Contents
Advertisement
GROUP 1 CONFIGURE
BADR3 + 7
READ/WRITE
7
6
MS
M3
5.4.3 Group 2 8255 Configuration & Data
GROUP 2, PORT A DATA
BADR3 + 8
READ/WRITE
7
6
D7
D6
GROUP 2, PORT B DATA
BADR3 + 9
READ/WRITE
7
6
D7
D6
GROUP 2, PORT C DATA
BADR3 + A hex
READ/WRITE
7
6
C8
C7
CH4
CH3
GROUP 2 CONFIGURE
BADR3 + B hex
READ/WRITE
7
6
MS
M3
5.4.4 Group 3 8255 Configuration & Data
GROUP 3, PORT A DATA
BADR3 + C hex
READ/WRITE
7
6
D7
D6
5
4
M2
A
5
4
D5
D4
5
4
D5
D4
5
4
C6
C5
CH2
CH1
5
4
M2
A
5
4
D5
D4
14
3
2
CH
M1
3
2
D3
D2
3
2
D3
D2
3
2
C4
C3
CL4
CL3
3
2
CH
M1
3
2
D3
D2
1
0
B
CL
1
0
D1
D0
1
0
D1
D0
1
0
C2
C1
CL2
CL1
1
0
B
CL
1
0
D1
D0
Advertisement
Table of Contents
