Port 1 Input Pull-Up Mos; Port 2; Port 2 Data Direction Register (P2Ddr); Table 7.2 Input Pull-Up Mos States (Port 1) - Renesas H8S/2111B Hardware Manual

7.1.5

Port 1 Input Pull-Up MOS

Port 1 has an on-chip input pull-up MOS function that can be controlled by software. This input
pull-up MOS function can be specified as on or off on a bit-by-bit basis.
Table 7.2 summarizes the input pull-up MOS states.
Table 7.2 Input Pull-Up MOS States (Port 1)
Reset Hardware Standby Mode
Off Off
[Legend]
Off: Input pull-up MOS is always off.
On/Off: On when the pin is in the input state, P1DDR = 0, and P1PCR = 1: otherwise off.
7.2

Port 2

Port 2 is an 8-bit I/O port. Port 2 has an on-chip input pull-up MOS function that can be controlled
by software. Port 2 has the following registers.

• Port 2 data direction register (P2DDR)

• Port 2 data register (P2DR)
• Port 2 pull-up MOS control register (P2PCR)
7.2.1 Port 2 Data Direction Register (P2DDR)
P2DDR specifies input or output for the pins of port 2 on a bit-by-bit basis.
Bit Bit Name
7 P27DDR
6 P26DDR
5 P25DDR
4 P24DDR
3 P23DDR
2 P22DDR
1 P21DDR
0 P20DDR
Rev. 1.00, 05/04, page 102 of 544
Initial
Value R/W
0 W
0 W
0 W
0 W
0 W
0 W
0 W
0 W
Software Standby Mode In Other Operations
On/Off
Description
The corresponding port 2 pins are output ports when
P2DDR bits are set to 1, and input ports when P2DDR
bits are cleared to 0.
On/Off