參數(shù)資料
型號: UPD784021
廠商: NEC Corp.
英文描述: 16/8-BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 16/8-BIT單片機
文件頁數(shù): 12/90頁
文件大?。?/td> 614K
代理商: UPD784021
12
m
PD784020, 784021
6. LIST OF PIN FUNCTIONS
6.1 PORT PINS
Function
Port 0 (P0):
Y
8-bit I/O port
Y
Functions as a real-time output port (4 bits
2).
Y
Inputs and outputs can be specified bit by bit.
Y
The use of the pull-up resistors can be specified by software for the pins
in the input mode together.
Y
Can drive a transistor.
Port 1 (P1):
Y
8-bit I/O port
Y
Inputs and outputs can be specified bit by bit.
Y
The use of the pull-up resistors can be specified by software for the pins
in the input mode together.
Y
Can drive LED.
Port 2 (P2):
Y
8-bit input-only port
Y
P20 does not function as a general-purpose port (nonmaskable inter-
rupt). However, the input level can be checked by an interrupt service
routine.
Y
The use of the pull-up resistors can be specified by software for pins
P22 to P27 (in units of 6 bits).
Y
The P25/INTP4/ASCK/SCK1 pin functions as the SCK1 output pin by
CSIM1.
Port 3 (P3):
Y
8-bit I/O port
Y
Inputs and outputs can be specified bit by bit.
Y
The use of the pull-up resistors can be specified by software for the pins
in the input mode together.
Port 6 (P6):
Y
P60 to P63 are an output-only port.
Y
Inputs and outputs can be specified bit by bit for pins P66 and P67.
Y
The use of the pull-up resistors can be specified by software for the pins
in the input mode together.
Port 7 (P7):
Y
8-bit I/O port
Y
Inputs and outputs can be specified bit by bit.
I/O
I/O
I/O
Input
I/O
I/O
I/O
Pin
P00-P07
P10
P11
P12
P13
P14
P15-P17
P20
P21
P22
P23
P24
P25
P26
P27
P30
P31
P32
P33
P34-P37
P60-P63
P66
P67
P70-P77
Dual-function
PWM0
PWM1
ASCK2/SCK2
RxD2/SI2
TxD2/SO2
NMI
INTP0
INTP1
INTP2/CI
INTP3
INTP4/ASCK/SCK1
INTP5
SI0
RxD/SI1
TxD/SO1
SCK0
SO0/SB0
TO0-TO3
A16-A19
WAIT/HLDRQ
REFRQ/HLDAK
ANI0-ANI7
相關(guān)PDF資料
PDF描述
UPD784031GC-3B9 16/8-BIT SINGLE-CHIP MICROCONTROLLER
UPD784031GC-8BT 16/8-BIT SINGLE-CHIP MICROCONTROLLER
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