MB90330A Series
22
■ I/O MAP
(Continued)
Address
Register
abbreviation
Register
Read/
Write
Resource name
Initial Value
000000H
PDR0
Port 0 Data Register
R/W
Port 0
XXXXXXXXB
000001H
PDR1
Port 1 Data Register
R/W
Port 1
XXXXXXXXB
000002H
PDR2
Port 2 Data Register
R/W
Port 2
XXXXXXXXB
000003H
PDR3
Port 3 Data Register
R/W
Port 3
XXXXXXXXB
000004H
PDR4
Port 4 Data Register
R/W
Port 4
XXXXXXXXB
000005H
PDR5
Port 5 Data Register
R/W
Port 5
XXXXXXXXB
000006H
PDR6
Port 6 Data Register
R/W
Port 6
XXXXXXXXB
000007H
PDR7
Port 7 Data Register
R/W
Port 7
XXXXXXXXB
000008H
PDR8
Port 8 Data Register
R/W
Port 8
XXXXXXXXB
000009H
PDR9
Port 9 Data Register
R/W
Port 9
- XXXXXXXB
00000AH
PDRA
Port A Data Register
R/W
Port A
XXXXXXXXB
00000BH
Prohibited
00000CH
PDRB
Port B Data Register
R/W
Port B
- XXXXXXXB
00000DH
DDRB
Port B Direction Register
R/W
Port B
- 0 0 0 0 0 0 0B
00000EH
Prohibited
00000FH
000010H
DDR0
Port 0 Direction Register
R/W
Port 0
0 0 0 0 0 0 0 0B
000011H
DDR1
Port 1 Direction Register
R/W
Port 1
0 0 0 0 0 0 0 0B
000012H
DDR2
Port 2 Direction Register
R/W
Port 2
0 0 0 0 0 0 0 0B
000013H
DDR3
Port 3 Direction Register
R/W
Port 3
0 0 0 0 0 0 0 0B
000014H
DDR4
Port 4 Direction Register
R/W
Port 4
0 0 0 0 0 0 0 0B
000015H
DDR5
Port 5 Direction Register
R/W
Port 5
0 0 0 0 0 0 0 0B
000016H
DDR6
Port 6 Direction Register
R/W
Port 6
0 0 0 0 0 0 0 0B
000017H
DDR7
Port 7 Direction Register
R/W
Port 7
0 0 0 0 0 0 0 0B
000018H
DDR8
Port 8 Direction Register
R/W
Port 8
0 0 0 0 0 0 0 0B
000019H
DDR9
Port 9 Direction Register
R/W
Port 9
- 0 0 0 0 0 0 0B
00001AH
DDRA
Port A Direction Register
R/W
Port A
0 0 0 0 0 0 0 0B
00001BH
ODR4
Port 4 Output Pin Register
R/W
Port 4
(open drain control)
0 0 0 0 0 0 0 0B
00001CH
RDR0
Port 0 Pull-up Resistance Register
R/W
Port 0 (PULL-UP)
0 0 0 0 0 0 0 0B
00001DH
RDR1
Port 1 Pull-up Resistance Register
R/W
Port 1 (PULL-UP)
0 0 0 0 0 0 0 0B
00001EH
ADER0
Analog Input Enable Register 0
R/W
Port 7, 8, A/D
1 1 1 1 1 1 1 1B
00001FH
ADER1
Analog Input Enable Register 1
R/W
Port 7, 8, A/D
1 1 1 1 1 1 1 1B
000020H
SMR0
Serial Mode Register 0
R/W
UART0
0 0 1 0 0 0 0 0B
000021H
SCR0
Serial Control Register 0
R/W
0 0 0 0 0 1 0 0B
000022H
SIDR0
Serial Input Data Register 0
R
XXXXXXXXB
SODR0
Serial Output Data Register 0
W
000023H
SSR0
Serial Status Register 0
R/W
0 0 0 0 1 0 0 0B
000024H
UTRLR0
UART Prescaler Reload Register 0
R/W
Communication
Prescaler (UART0)
0 0 0 0 0 0 0 0B
000025H
UTCR0
UART Prescaler Control Register 0
R/W
0 0 0 0 - 0 0 0B