HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 209

• Manufacturer Part Number: HD6432160
• Description: Hitachi 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

8.4.5
Port 3 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 8.4 summarizes the input pull-up MOS states.
Table 8.4
Legend
Off:
On/Off: On when the pin is in the input state, P3DDR = 0, and P3PCR = 1; otherwise off.
8.5
Port 4 is an 8-bit I/O port. Port 4 pins also function as PWMX output pins, TMR_0 and TMR_1
I/O pins, timer connection I/O pins, SCI_2 I/O pins, IrDA interface I/O pins, XBS output pins, and
the IIC_1 I/O pin. The output type of P42 and SCK2 is NMOS push-pull output. The output type
of SDA1 is NMOS open drain output. Port 4 pin functions are the same in all operating modes.
Port 4 has the following registers.
Mode
1, 2, 3 (EXPE = 1)
2, 3 (EXPE = 0)
Port 4 data direction register (P4DDR)
Port 4 data register (P4DR)
Input pull-up MOS is always off.
Port 3 Input Pull-Up MOS
Port 4
Input Pull-Up MOS States (Port 3)
Reset
Off
Hardware
Standby Mode
Off
Software
Standby Mode
Off
On/Off
Rev. 2.0, 08/02, page 169 of 788
In Other
Operations
Off
On/Off