Example Mc68020/Ec020 Byte Select Pal System Configuration - Motorola MC68020 User Manual

MC68020/EC020
SIZ0
SIZ1
A0
A1
FC0
FC1
MC74F00
*
A31–A2
AS
R/W
D31–D0
* For the MC68EC020, A23–A2.
Figure 9-5. Example MC68020/EC020 Byte Select PAL System Configuration
MOTOROLA
PAL16L8
UUDA
UMDA
LMDA
LLDA
CPU
LLDB
LMDB
UMDB
A21–A18
UUDB
32-BIT PORT
* A31–A2
M68020 USER'S MANUAL
MC74F32
MC74F32
W E W E
MCM60256A
MCM60256A
D7–D0 D15–D8
UUDA
UNMAPPED BYTE
UMDA
SELECTS FOR OTHER
LMDA
32-BIT PORTS
LLDA
MC74F32
MC74F32
W E W E
MCM60256A
MCM60256A
D23–D16 D31–D24
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