CHAPTER 4 EXTERNAL BUS INTERFACE
❍ 8-bit bus width
Figure 4.4-9 Relationship between Internal Register and External Bus Having 8-bit Bus Width
Output address low-order digits
186
Internal register
read/write
D31
AA
D23
BB
D15
CC
D07
DD
External bus
"00
"
"01
" "10
" "11
"
B
B
B
B
AA
BB
CC
DD
D31