MB90480/485 Series
■ I/O MAP
Read/
Write
Abbreviated
Address
Register name
Port 0 data register
Resource name
Initial value
register name
00H
01H
02H
03H
04H
05H
06H
PDR0
PDR1
PDR2
PDR3
PDR4
PDR5
PDR6
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Port 0
Port 1
Port 2
Port 3
Port 4
Port 5
Port 6
XXXXXXXXB
XXXXXXXXB
XXXXXXXXB
XXXXXXXXB
XXXXXXXXB
XXXXXXXXB
XXXXXXXXB
Port 1 data register
Port 2 data register
Port 3 data register
Port 4 data register
Port 5 data register
Port 6 data register
XXXXXXXXB
(MB90480 series)
07H
Port 7 data register
PDR7
R/W
Port 7
11XXXXXXB
(MB90485 series)
08H
09H
0AH
Port 8 data register
Port 9 data register
Port A data register
PDR8
PDR9
PDRA
R/W
R/W
R/W
Port 8
Port 9
Port A
XXXXXXXXB
XXXXXXXXB
----XXXXB
Up/down timer
input control
0BH
Up/down timer input enable register
UDRE
R/W
XX000000B
0CH
0DH
0EH
0FH
10H
11H
12H
13H
14H
15H
16H
Interrupt/DTP enable register
Interrupt/DTP source register
Request level setting register
Request level setting register
Port 0 direction register
Port 1 direction register
Port 2 direction register
Port 3 direction register
Port 4 direction register
Port 5 direction register
Port 6 direction register
ENIR
EIRR
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
00000000B
XXXXXXXXB
00000000B
00000000B
00000000B
00000000B
00000000B
00000000B
00000000B
00000000B
00000000B
DTP/external interrupts
ELVR
DDR0
DDR1
DDR2
DDR3
DDR4
DDR5
DDR6
Port 0
Port 1
Port 2
Port 3
Port 4
Port 5
Port 6
00000000B
(MB90480 series)
17H
Port 7 direction register
DDR7
R/W
Port 7
XX000000B
(MB90485 series)
18H
19H
1AH
Port 8 direction register
Port 9 direction register
Port A direction register
DDR8
DDR9
DDRA
R/W
R/W
R/W
Port 8
Port 9
Port A
00000000B
00000000B
----0000B
Port 4
1BH
1CH
1DH
Port 4 output pin register
ODR4
RDR0
RDR1
R/W
R/W
R/W
00000000B
00000000B
00000000B
(Open-drain control)
Port 0
(resistance control)
Port 1
(resistance control)
Port 0 input resistance register
Port 1 input resistance register
00000000B
(MB90480 series)
XX000000B
(MB90485 series)
Port 7
1EH
1FH
Port 7 output pin register
ODR7
ADER
R/W
R/W
(Open-drain control)
Analog input enable register
Port 6, A/D
11111111B
(Continued)
24
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