Port Data Register 5 (Pdr5); Port Pull-Up Control Register 5 (Pucr5) - Renesas H8 Series Hardware Manual

16-bit single-chip microcomputer
Hide thumbs Also See for H8 Series:
Table of Contents

Advertisement

Section 9 I/O Ports
9.3.3

Port Data Register 5 (PDR5)

PDR5 is a general I/O port data register of port 5.
Bit
Bit Name
7
P57
6
P56
5
P55
4 to 0
9.3.4

Port Pull-Up Control Register 5 (PUCR5)

PUCR5 controls the pull-up MOS in bit units of the pins set as the input ports.
Bit
Bit Name
7, 6
5
PUCR55
4 to 0
Rev. 3.00 Sep. 14, 2006 Page 126 of 408
REJ09B0105-0300
Initial
Value
R/W
Description
0
R/W
These bits store output data for port 5 pins.
0
R/W
If PDR5 is read while PCR5 bits are set to 1, the value
stored in PDR5 are read. If PDR5 is read while PCR5 bits
0
R/W
are cleared to 0, the pin states are read regardless of the
value stored in PDR5.
All 1
Reserved
These bits are always read as 1.
Initial
Value
R/W
Description
All 0
Reserved
These bits are always read as 0.
0
R/W
Only bits for which PCR5 is cleared are valid.
The pull-up MOS of the corresponding pins enter the on-
state when this bit is set to 1, while they enter the off-
state when this bit is cleared to 0.
All 0
Reserved
These bits are always read as 0.

Advertisement

Table of Contents
loading

Table of Contents