h8s-2111b Renesas Electronics Corporation., h8s-2111b Datasheet - Page 138

• Manufacturer Part Number: h8s-2111b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

7.2.5
Port 2 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 7.3 summarizes the input pull-up MOS states.
Table 7.3
[Legend]
Off:
On/Off: On when the pin is in the input state, P2DDR = 0, and P2PCR = 1; otherwise off.
7.3
Port 3 is an 8-bit I/O port. Port 3 pins also function as LPC input/output pins. Port 3 has the
following registers.
• Port 3 data direction register (P3DDR)
• Port 3 data register (P3DR)
• Port 3 pull-up MOS control register (P3PCR)
7.3.1
P3DDR specifies input or output for the pins of port 3 on a bit-by-bit basis.
Rev. 1.00, 05/04, page 104 of 544
Reset
Off
Bit
7
6
5
4
3
2
1
0
Input pull-up MOS is always off.
Bit Name
P37DDR
P36DDR
P35DDR
P34DDR
P33DDR
P32DDR
P31DDR
P30DDR
Port 2 Input Pull-Up MOS
Port 3
Port 3 Data Direction Register (P3DDR)
Input Pull-Up MOS States (Port 2)
Hardware
Standby Mode
Off
Initial
Value
0
0
0
0
0
0
0
0
R/W
W
W
W
W
W
W
W
W
Software
Standby Mode
On/Off
Description
The corresponding port 3 pins are output ports when
P3DDR bits are set to 1, and input ports when P3DDR
bits are cleared to 0.
In Other
Operations
On/Off