Datasheet

Section 10 I/O Ports
REJ09B0465-0300 Rev. 3.00 Page 291 of 982
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
10.4.2 Port Control Register 5 (PCR5)
b7
PCR57
0
b6
PCR56
0
b5
PCR55
0
b4
PCR54
0
b3
PCR53
0
b2
PCR52
0
b1
PCR51
0
b0
PCR50
0
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Bit:
Address:
Value after reset:
Bit Symbol Bit Name Description R/W
7 PCR57 Port 57 control R/W
6 PCR56 Port 56 control R/W
5 PCR55 Port 55 control R/W
4 PCR54 Port 54 control R/W
3 PCR53 Port 53 control R/W
2 PCR52 Port 52 control R/W
1 PCR51 Port 51 control R/W
0 PCR50 Port 50 control
0: When the corresponding pin is designated as a
general I/O port, the pin functions as an input
port.
1: When the corresponding pin is designated as a
general I/O port, the pin functions as an output
port.
PCR5 is a register that selects inputs/outputs in bit
units for pins to be used as general I/O ports of port
5.
R/W
• PCR57 bit to PCR50 bit (port 57 to 50 control)
When the corresponding pin is designated in PMR5 as a general I/O pin, setting a PCR5 bit to
1 makes the corresponding pin an output port, while clearing the bit to 0 makes the pin an
input port.