参数资料
型号: MB91108PFV
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 50 MHz, RISC MICROCONTROLLER, PQFP120
封装: PLASTIC, LQFP-120
文件页数: 27/96页
文件大小: 1342K
代理商: MB91108PFV
MB91107/108
33
s PERIPHERAL RESOURCES
1.
I/O Ports
There are 2 types of I/O port register structure; PDR (port data register) and DDR (data direction register) .
For input (DDR = “0”) setting;
PDR reading operation: reads level of corresponding external pin.
PDR writing operation: writes set value to PDR.
For output (DDR = “1”) setting;
PDR reading operation: reads PDR value.
PDR writing operation: outputs PDR value to corresponding external pin.
(1) Register configuration
Port Data Register (PDR)
Address
bit 7
bit 0
Initial value
Access
000001H
PDR2
XXXXXXXXB
R/W
000005H
PDR6
XXXXXXXXB
R/W
000004H
PDR7
- - - - - - - XB
R/W
00000BH
PDR8
- - X - - XXXB
R/W
000009H
PDRA
- XXXXXX -B
R/W
000008H
PDRB
XXXXXXXXB
R/W
000012H
PDRE
XXXXXXXXB
R/W
000013H
PDRF
XXXXXXXXB
R/W
000014H
PDRG
XXXXXXXXB
R/W
000015H
PDRH
XXXXXXX0B
R/W
000016H
PDRI
- - - - - - XXB
R/W
: Readable and writable
-
: Unused
X
: Indeterminate
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