參數(shù)資料
型號: μPD789800
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位單片機微控制器(8位單片微控制器)
文件頁數(shù): 10/48頁
文件大小: 266K
代理商: ΜPD789800
10
μ
PD789800
3. PIN FUNCTIONS
3.1
Port Pins
Pin name
I/O
Function
When reset
Also used as
P00-P07
I/O
Port 0
8-bit input/output port
Input or output is specifiable bit by bit.
When used as an input port, the use of on-chip pull-up resistors can
be specified by software.
CMOS output or N-ch open-drain output is specifiable in 8-bit units.
Input
-
P10-P17
I/O
Port 1
8-bit input/output port
Input or output is specifiable bit by bit.
When used as an input port, the use of on-chip pull-up resistors can
be specified by software.
CMOS output or N-ch open-drain output is specifiable in 8-bit units.
Input
-
P20
SCK10
P21
SO10
P22
SI10
P23-P25
-
P26
I/O
Port 2
7-bit input/output port
Input or output is specifiable bit by bit.
When used as an input port, the use of on-chip pull-up resistors can
be specified by software.
Only for P25 and P26, CMOS output or N-ch open-drain output is
specifiable bit by bit.
Input
INTP0/TI01/TO01
P40-P47
I/O
Port 4
8-bit input/output port
Input or output is specifiable bit by bit.
When used as an input port, the use of on-chip pull-up resistors can
be specified by software.
Input
KR00
-
KR07
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