參數(shù)資料
型號: μPD789186
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
中文描述: 8位單片機(jī)微控制器(8位單片微控制器)
文件頁數(shù): 12/146頁
文件大小: 630K
代理商: ΜPD789186
Preliminary Product Information
12
μ
PD789186, 789187, 789196, 789197
3. PIN FUNCTIONS
3.1
Port Pins
Pin name
I/O
Function
When reset
Also used as
P00-P05
I/O
Port 0
6-bit input/output port
Can be set to either input or output in 1-bit units
When used as an input port, whether the on-chip pull-up resistor is
to be used can be specified by software.
Input
P10, P11
I/O
Port 1
2-bit input/output port
Can be set to either input or output in 1-bit units
When used as an input port, whether the on-chip pull-up resistor is
to be used can be specified by software.
Input
P20
I/O
Input
SCK20/ASCK20
P21
SO20/TxD20
P22
SI20/RxD20
P23
SCL0
P24
SDA0
P25
TI80/SS20
P26
TO80
P30
I/O
Input
INTP0/TI81/CPT90
P31
INTP1/TO81
P32
INTP2/TO90
P33
INTP3/TI82/BZO90
P50-P53
I/O
Port 5
4-bit N-channel open-drain input/output port
Can be set to either input or output in 1-bit units
Whether to incorporate a pull-up resistor can be specified by a mask
option.
Input
P60-P67
Input
Port 6
8-bit input-only port
Input
ANI0-ANI7
Port 2
7-bit input/output port
Can be set to either input or output in 1-bit units
For P20 to P22, P25, and P26, whether to use the on-chip pull-up
resistor can be specified by software.
Only P23 and P24 can be used as N-channel open-drain
input/output port pins.
Port 3
4-bit input/output port
Can be set to either input or output in 1-bit units
Whether to use the on-chip pull-up resistor can be specified by
software.
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