HD6417750RF240V Datasheet, PDF (175/606 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 9 I/O Ports
9.4.4 Port A Pull-Up MOS Control Register (PAPCR)
PAPCR is an 8-bit register that controls the MOS input pull-up function.
Bit Bit Name
7—
6—
5—
4—
3 PA3PCR
2 PA2PCR
1 PA1PCR
0 PA0PCR
Initial Value R/W
Undefined —
Undefined —
Undefined —
Undefined —
0
R/W
0
R/W
0
R/W
0
R/W
Description
Reserved
These bits are read as an undefined value.
When a pin is specified as an input port, setting the
corresponding bit to 1 turns on the MOS input pull-
up for that pin.
9.4.5 Port A Open-Drain Control Register (PAODR)
PAODR is an 8-bit read/write register that specifies the output type of port A.
Bit Bit Name
7—
6—
5—
4—
3 PA3ODR
2 PA2ODR
1 PA1ODR
0 PA0ODR
Initial Value R/W
Undefined —
Undefined —
Undefined —
Undefined —
0
R/W
0
R/W
0
R/W
0
R/W
Description
Reserved
These bits are read as an undefined value.
When a pin is specified as an output port, setting
the corresponding bit to 1 specifies pin output to
open-drain and the MOS input pull-up to the off
state. Clearing this bit to 0 specifies that to push-
pull output.
Rev. 7.00 Sep. 11, 2009 Page 139 of 566
REJ09B0211-0700