![](http://datasheet.mmic.net.cn/330000/MB90P224BPF_datasheet_16438137/MB90P224BPF_35.png)
35
MB90220 Series
I
PERIPHERAL RESOURCES
1. Parallel Ports
The MB90220 series has 86 I/O pins and 16 open-drain I/O pins.
(1) Register Configuration
Register name Address
PDR1
PDR3
PDR5
PDR7
PDR9
PDRB
Register name Address
PDR0
PDR2
PDR4
PDR6
PDR8
PDRA
PDRC
Note: There are no register bits for bits 7 and 6 of port C.
Note: There are no register bits for bits 7 and 6 of port C.
Register name Address
DDR1
DDR3
DDR5
DDR7
DDRB
Register name Address
DDR0
DDR2
DDR4
DDR8
DDRA
DDRC
Register name Address
ADER0
Register name Address
ADER1
000001
H
000003
H
000005
H
000007
H
000009
H
00000B
H
PD x 7 PD x 6 PD x 5 PD x 4 PD x 3 PD x 2 PD x 1 PD x 0
PD x 7 PD x 6 PD x 5 PD x 4 PD x 3 PD x 2 PD x 1 PD x 0
(R/W)
(R/W)
(R/W)
(R/W)
PDR7 only:
000000
H
000002
H
000004
H
000006
H
000008
H
00000A
H
00000C
H
000011
H
000013
H
000015
H
000017
H
00001B
H
000010
H
000012
H
000014
H
000018
H
00001A
H
00001C
H
DD x 7
DD x 6
DD x 5
DD x 4
DD x 3
DD x 2
DD x 1
DD x 0
000016
H
AE07
AE06
AE05
AE04
AE03
AE02
AE01
AE00
000019
H
AE15
AE14
AE13
AE12
AE11
AE10
AE09
AE08
(R/W)
(R)
(R/W)
(R)
(R/W)
(R)
(R/W)
(R)
(R/W)
(R)
(R/W)
(R)
(R/W)
(R)
(R/W)
(R)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
XXXXXXXX
B
(PDR9 only: 11111111)
(PDR6 only: 11111111)
(PDR7 only: 11111111)
XXXXXXXX
B
bit7 bit6 bit5 bit 4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit 4 bit3 bit2 bit1 bit0
00000000
B
bit7 bit6 bit5 bit 4 bit3 bit2 bit1 bit0
11111111
B
bit7 bit6 bit5 bit 4 bit3 bit2 bit1 bit0
11111111
B
Initial value
Initial value
Initial value
Initial value
DD x 7
DD x 6
DD x 5
DD x 4
DD x 3
DD x 2
DD x 1
DD x 0
bit15 bit14 bit13 bit12 bit11 bit10 bit9 bit8
bit15 bit14 bit13 bit12 bit11 bit10 bit9 bit8
00000000
B
Initial value
Initial value
Port 0 to C Data Register (PDR0 to PDRC)
Port 0 to C Data Register (PDR0 to PDRC)
Port 6, 9 Analog Input Enable Register (ADER0, ADER1)