參數(shù)資料
型號: UPD17226MC
廠商: NEC Corp.
元件分類: 4位微控制器
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
中文描述: 4位單片機的小型通用紅外遙控器
文件頁數(shù): 28/84頁
文件大?。?/td> 393K
代理商: UPD17226MC
μ
PD17225, 17226, 17227, 17228
28
Data Sheet U12643EJ2V0DS00
3.8
Specifying Pull-up Resistor Connection
Whether or not a pull-up resistor is connected to port P0E can be specified by the following registers of the register
file in 1-bit units when the port is in the input mode
Note
.
3
2
1
0
P0EBPU3 P0EBPU2
P0EBPU1 P0EBPU0
Address:
RF : 17H
P0EBPU0
On reset:
0H
R/W:
R/W
0
1
Connects Pull-Up Resistor to P0E
0
P0EBPU1
0
1
P0EBPU2
0
1
P0EBPU3
0
1
Not connected
Connected
Connects Pull-Up Resistor to P0E
1
Not connected
Connected
Connects Pull-Up Resistor to P0E
2
Not connected
Connected
Connects Pull-Up Resistor to P0E
3
Not connected
Connected
Note
To disconnect the pull-up resistor in the output mode, clear the corresponding bit of the P0EBPU register.
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