Fujitsu MB91F109 FR30 Hardware Manual page 177

Byte Access
Bus width
16-bit bus
width
4.16 Relationship between Data Bus Widths and Control Signals
Big endian mode
Internal register External pin
address: '0'
D31 D31
AA
D16
AA
D00
1)
Internal register External pin
address: '1'
D31 D31
BB WR1X CASH WEH
D16
BB
D00
1)
Internal register External pin
address: '2'
D31 D31
CC WR0X CASL WEL
D16
CC
D00
1)
Internal register External pin
address: '3'
D31 D31
DD WR1X CASH WEH
D16
DD
D00
1)
Control pin Internal register External pin
D31
WR0X CASL WEL
D00
Internal register External pin
Control pin
D31
D00
Internal register External pin
Control pin
D31
D00
Control pin Internal register External pin
D31
D00
Little endian mode
Control pin
address: '0'
D31
AA WR0X CASL WEL
D16
AA
1)
Control pin
address: '1'
D31
BB WR1X CASH WEH
D16
BB
1)
Control pin
address: '2'
D31
CC WR0X CASL WEL
D16
CC
1)
Control pin
address: '3'
D31
DD WR1X CASH WEH
D16
DD
1)
153