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MA28155 Datasheet, PDF (5/20 Pages) Dynex Semiconductor – Radiation Hard Programmable Peripheral Interface
◁
DSN
RD/WN
CSN, A1, A0
MA28155
RD/WN set-up and hold time
Figure 6: Basic Input (Write) Timing Diagram
Port Definition Mode 0
D4
D3
D1
D0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
1
1
0
0
0
1
0
0
1
1
0
1
0
1
0
1
1
1
1
0
0
1
1
0
1
1
1
1
0
1
1
1
1
PORT A
(UPPER)
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
PORT C
OUTPUT
OUTPUT
OUTPUT
OUTPUT
INPUT
INPUT
INPUT
INPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
INPUT
INPUT
INPUT
INPUT
PORT B
OUTPUT
OUTPUT
INPUT
INPUT
OUTPUT
OUTPUT
INPUT
INPUT
OUTPUT
OUTPUT
INPUT
INPUT
OUTPUT
OUTPUT
INPUT
INPUT
PORT C
(LOWER)
OUTPUT
INPUT
OUTPUT
INPUT
OUTPUT
INPUT
OUTPUT
INPUT
OUTPUT
INPUT
OUTPUT
INPUT
OUTPUT
INPUT
OUTPUT
INPUT
Table 2: Port Definition Mode 0 (See Also Figure 3)
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