HD64336900G Datasheet, PDF (147/408 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series

9.3.3 Port Data Register 5 (PDR5)
PDR5 is a general I/O port data register of port 5.
Initial
Bit
Bit Name Value R/W Description
7
P57
0
R/W These bits store output data for port 5 pins.
6
P56
0
5
P55
0
R/W If PDR5 is read while PCR5 bits are set to 1, the value
R/W
stored in PDR5 are read. If PDR5 is read while PCR5 bits
are cleared to 0, the pin states are read regardless of the
value stored in PDR5.
4 to 0 
All 1

Reserved
These bits are always read as 1.
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.
Initial
Bit
Bit Name Value R/W Description
7, 6 
All 0

Reserved
These bits are always read as 0.
5
PUCR55 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.
4 to 0 
All 0

Reserved
These bits are always read as 0.
Rev. 1.00, 11/03, page 119 of 376