MB90390 Series
24
■ I/O MAP
(Continued)
Address
Register
Abbrevia-
tion
Access
Resource name
Initial value
00H
Port 0 Data Register
PDR0
R/W
Port 0
XXXXXXXX
01H
Port 1 Data Register
PDR1
R/W
Port 1
XXXXXXXX
02H
Port 2 Data Register
PDR2
R/W
Port 2
XXXXXXXX
03H
Port 3 Data Register
PDR3
R/W
Port 3
XXXXXXXX
04H
Port 4 Data Register
PDR4
R/W
Port 4
XXXXXXXX
05H
Port 5 Data Register
PDR5
R/W
Port 5
XXXXXXXX
06H
Port 6 Data Register
PDR6
R/W
Port 6
XXXXXXXX
07H
Port 7 Data Register
PDR7
R/W
Port 7
XXXXXXXX
08H
Port 8 Data Register
PDR8
R/W
Port 8
XXXXXXXX
09H
Port 9 Data Register
PDR9
R/W
Port 9
XXXXXXXX
0AH
Port A Data Register
PDRA
R/W
Port A
XXXXXXXX
0BH
Port B Data Register
PDRB
R/W
Port B
XXXXXXXX
0CH
Analog Input Enable 0
ADER0
R/W
Port 6, A/D
11111111
0DH
Analog Input Enable 1/ ADC Select
ADER1
R/W
Port B, A/D
01111111
0EH
Input Level Select Register
ILSR
R/W
Ports
00000000
0FH
Input Level Select Register
ILSR
R/W
Ports
00000000
10H
Port 0 Direction Register
DDR0
R/W
Port 0
00000000
11H
Port 1 Direction Register
DDR1
R/W
Port 1
00000000
12H
Port 2 Direction Register
DDR2
R/W
Port 2
00000000
13H
Port 3 Direction Register
DDR3
R/W
Port 3
00000000
14H
Port 4 Direction Register
DDR4
R/W
Port 4
00000000
15H
Port 5 Direction Register
DDR5
R/W
Port 5
00000000
16H
Port 6 Direction Register
DDR6
R/W
Port 6
00000000
17H
Port 7 Direction Register
DDR7
R/W
Port 7
00000000
18H
Port 8 Direction Register
DDR8
R/W
Port 8
00000000
19H
Port 9 Direction Register
DDR9
R/W
Port 9
00000000
1AH
Port A Direction Register
DDRA
R/W
Port A
00000000
1BH
Port B Direction Register
DDRB
R/W
Port B
00000000
1CH to 1FH
Reserved
20H
Serial Mode Control 0
UMC0
R/W
UART0
00000100
21H
Status 0
USR0
R/W
00010000
22H
Input/Output Data 0
UIDR0/
UODR0
R/W
XXXXXXXX
23H
Rate and Data 0
URD0
R/W
0000000X