Datasheet

Section 10 I/O Ports
REJ09B0465-0300 Rev. 3.00 Page 305 of 982
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
10.6.4 Port Pull-Up Control Register 8 (PUCR8)
b7
PUCR87
0
b6
PUCR86
0
b5
PUCR85
0
b4
⎯
0
b3
⎯
0
b2
⎯
0
b1
⎯
0
b0
⎯
0
H'FF0017
Bit:
Address:
Value after reset:
Bit Symbol Bit Name Description R/W
7 PUCR87 Port 87 pull-up
control
R/W
6 PUCR86 Port 86 pull-up
control
R/W
5 PUCR85 Port 85 pull-up
control
0: The pull-up MOS of corresponding pin is
disabled.
1: The pull-up MOS of corresponding pin is
enabled.
PUCR8 is a register that controls the pull-up MOS
in bit units of the pins set as the input ports.
R/W
4 to 0 ⎯ Reserved These bits are read as 0. The write value should
be 0.
⎯
• PUCR87 bit to PUCR85 bit (port 87 to 85 pull-up control)
This function is valid only for the pin set as general input, and for the input pin with a function
selected by the PMC.