Byte Enable Signal Generation For 16- And 32-Bit Ports - Motorola MC68020 User Manual

A0
A1
SIZ0
SIZ1
R/W
Figure 5-18. Byte Enable Signal Generation for 16- and 32-Bit Ports
MOTOROLA M68020 USER'S MANUAL
UUD = UPPER UPPER DATA (32-BIT PORT)
UMD = UPPER MIDDLE DATA (32-BIT PORT)
LMD = LOWER MIDDLE DATA (32-BIT PORT)
LLD = LOWER LOWER DATA (32-BIT PORT)
UD = UPPER DATA (16-BIT PORT)
LD = LOWER DATA (16-BIT PORT)
UUD
UMD
LMD
LLD
UD
LD
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