Bus Width - Fujitsu MB91F109 FR30 Hardware Manual

CHAPTER 4 BUS INTERFACE
Half-Word Access

Bus width

16-bit bus
width
8-bit bus
width
152
Big endian mode
Internal register External pin
address: 0
D31 D31
AA
BB
D16
AA
BB
D00
1)
Internal register External pin
address: 2
D31 D31
CC
DD
D16
CC
DD
D00
1)
Internal register External pin
address: 0 1
D31 D31
AA BB
D24
AA
BB
D00 D00
1) 2)
Internal register External pin
address: 2
3
D31 D31
CC DD
D24
CC
DD
D00 D00
1) 2)
Internal register
Control pin
D31
WR0X CASL WEL
WR1X CASH WEH
AA
BB
D00
Control pin Internal register External pin
D31
WR0X CASL WEL
WR1X CASH WEH
CC
DD
D00
Control pin Internal register External pin
D31
WR0X CAS WE
D00
Internal register External pin
Control pin
D31
WR0X CAS WE
CC
DD
D00
Little endian mode
External pin Control pin
address: 0
D31
BB WR0X CAS0 WEL
AA WR1X CAS1 WEH
D16
1)
Control pin
address: 0
D31
DD WR0X CASL WEL
CC WR1X CASH WEH
D16
1)
Control pin
address: 0 1
D31
BB AA WR0X CAS WE
D24
AA
BB
D00
1) 2)
Control pin
address: 2
3
D31
DD CC WR0X CAS WE
D24
D00
1) 2)