MA28155
DSN
RD/WN set-up and hold time
RD/WN
CSN, A1, A0
Figure 6: Basic Input (Write) Timing Diagram
Port Definition Mode 0
D
4
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
D
3
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
D
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
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)
5/20
DYNEX [ Dynex Semiconductor ]
