Motorola ColdFire MCF5281 - Manual (Page 216)

Chip Select Module
12-2 Freescale Semiconductor
Table 12-2. Byte Enables/Byte Write Enable Signal Settings
Transfer Size Port Size A1 A0
BS3 BS2 BS1 BS0
D[31:24] D[23:16] D[15:8] D[7:0]
Byte 8-bit 0 0 0 1 1 1
0 1 0 1 1 1
1 0 0 1 1 1
1 1 0 1 1 1
16-bit 0 0 0 1 1 1
0 1 1 0 1 1
1 0 0 1 1 1
1 1 1 0 1 1
32-bit 0 0 0 1 1 1
0 1 1 0 1 1
1 0 1 1 0 1
1 1 1 1 1 0
Word 8-bit 0 0 0 1 1 1
0 1 0 1 1 1
1 0 0 1 1 1
1 1 0 1 1 1
16-bit 0 0 0 0 1 1
1 0 0 0 1 1
32-bit 0 0 0 0 1 1
1 0 1 1 0 0
Longword 8-bit 0 0 0 1 1 1
0 1 0 1 1 1
1 0 0 1 1 1
1 1 0 1 1 1
16-bit 0 0 0 0 1 1
1 0 0 0 1 1
32-bit 0 0 0 0 0 0
Line 8-bit 0 0 0 1 1 1
0 1 0 1 1 1
1 0 0 1 1 1
1 1 0 1 1 1
16-bit 0 0 0 0 1 1
1 0 0 0 1 1
32-bit 0 0 0 0 0 0
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3