Byte Enables/Byte Write Enable Signal Settings - Motorola ColdFire MCF5281 User Manual

Chip Select Module Signals
Table 12-2 shows the interaction of the byte-enable/byte-write enables with related signals.
Table 12-2. Byte Enables/Byte Write Enable Signal Settings
Transfer Size Port Size
Byte
Word
Longword
Line
12-2
A1 A0
8-bit 0 0
0 1
1 0
1 1
16-bit 0 0
0 1
1 0
1 1
32-bit 0 0
0 1
1 0
1 1
8-bit 0 0
0 1
1 0
1 1
16-bit 0 0
1 0
32-bit 0 0
1 0
8-bit 0 0
0 1
1 0
1 1
16-bit 0 0
1 0
32-bit 0 0
8-bit 0 0
0 1
1 0
1 1
16-bit 0 0
1 0
32-bit 0 0
MCF5282 User's Manual
BS3 BS2
D[31:24] D[23:16]
0 1
0 1
0 1
0 1
0 1
1 0
0 1
1 0
0 1
1 0
1 1
1 1
0 1
0 1
0 1
0 1
0 0
0 0
0 0
1 1
0 1
0 1
0 1
0 1
0 0
0 0
0 0
0 1
0 1
0 1
0 1
0 0
0 0
0 0
BS1 BS0
D[15:8] D[7:0]
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
0 1
1 0
1 1
1 1
1 1
1 1
1 1
1 1
1 1
0 0
1 1
1 1
1 1
1 1
1 1
1 1
0 0
1 1
1 1
1 1
1 1
1 1
1 1
0 0
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