
MB90480 Series
22
(Continued)
Address
Register name
Abbreviated
register
name
Read/
Write
Resource name
Initial value
A1H
Clock select register
CKSCR
R/W
low-power
operation
1 1 1 1 1 1 0 0
A2H to
A3H
(Reserved area)
A4H
DMA stop status register
DSSR
R/W
DMA
0 0 0 0 0 0 0 0
A5H
Automatic ready function select register
ARSR
W
External pins
0 0 1 1 - - 0 0
A6H
External address output control register
HACR
W
External pins
* * * * * * * *
A7H
Bus control signal control register
EPCR
W
External pins
1 0 0 0 * 1 0 -
A8H
Watchdog control register
WDTC
R/W
Watchdog timer
XXXXX 1 1 1
A9H
Timebase timer control register
TBTC
R/W
Timebase timer
1 X X 0 0 1 0 0
AAH
Clock timer control register
WTC
R/W
Clock timer
1 0 0 0 1 0 0 0
ABH
(Reserved area)
ACH
DMA control area
DERL
R/W
DMA
0 0 0 0 0 0 0 0
ADH
DMA control area
DERH
R/W
DMA
0 0 0 0 0 0 0 0
AEH
Flash memory control status register
FMCR
R/W
Flash memory
interface
0 0 0 X 0 0 0 0
AFH
(Disabled)
B0H
Interrupt control register 00
ICR00
W, R/W
X X X X 0 1 1 1
B1H
Interrupt control register 01
ICR01
W, R/W
X X X X 0 1 1 1
B2H
Interrupt control register 02
ICR02
W, R/W
X X X X 0 1 1 1
B3H
Interrupt control register 03
ICR03
W, R/W
X X X X 0 1 1 1
B4H
Interrupt control register 04
ICR04
W, R/W
X X X X 0 1 1 1
B5H
Interrupt control register 05
ICR05
W, R/W
X X X X 0 1 1 1
B6H
Interrupt control register 06
ICR06
W, R/W
X X X X 0 1 1 1
B7H
interrupt control register 07
ICR07
W, R/W
X X X X 0 1 1 1
B8H
Interrput control register 08
ICR08
W, R/W
X X X X 0 1 1 1
B9H
Interrupt control register 09
ICR09
W, R/W
X X X X 0 1 1 1
BAH
Interrupt control register 10
ICR10
W, R/W
X X X X 0 1 1 1
BBH
Interrupt control register 11
ICR11
W, R/W
X X X X 0 1 1 1
BCH
Interrupt control register 12
ICR12
W, R/W
X X X X 0 1 1 1
BDH
Interrupt control register 13
ICR13
W, R/W
X X X X 0 1 1 1
BEH
Interrupt control register 14
ICR14
W, R/W
X X X X 0 1 1 1
BFH
Interrupt control register 15
ICR15
W, R/W
X X X X 0 1 1 1
C0H
Chip select mask register 0
CMR0
R/W
Chip select
function
0 0 0 0 1 1 1 1
C1H
Chip select area register 0
CAR0
R/W
1 1 1 1 1 1 1 1
C2H
Chip select mask register 1
CMR1
R/W
0 0 0 0 1 1 1 1
C3H
Chip select area register 1
CAR1
R/W
1 1 1 1 1 1 1 1
C4H
Chip select mask register 2
CMR2
R/W
0 0 0 0 1 1 1 1
C5H
Chip select area register 2
CAR2
R/W
1 1 1 1 1 1 1 1