HD64F2145 datasheet(254/829 Pages) RENESAS

254 / 829 page

Rev. 2.0, 08/02, page 214 of 788

8.15.6

Input Pull-Up MOS in Ports E and F

Port E and port F have an on-chip input pull-up MOS function that can be controlled by software.

This input pull-up MOS function can be switched on or off on a bit-by-bit basis.

Table 8.10 is a summary of the input pull-up MOS states.

Table 8.10

Input Pull-Up MOS States (Port E and port F)

Mode

Reset

Hardware

Standby Mode

Software

Standby Mode

Other

Operations

1, 2, 3

Off

On/Off

Legend

Off:

Input pull-up MOS is always off.

On/Off: On when PEDDR = 0 and PEODR = 1 (PFDDR = 0 and PFODR = 1); otherwise off.

8.16

Port G

Port G is an 8-bit I/O port. Port G pin functions are the same in all operating modes. The output

type of port G is NMOS open-drain.

• Port G data direction register (PGDDR)

• Port G output data register (PGODR)

• Port G input data register (PGPIN)

• Port G Nch-OD control register (PGNOCR)

8.16.1

Port G Data Direction Register (PGDDR)

PGDDR selects input or output for the pins of port G on a bit-by-bit basis.

Bit

Bit Name

Initial Value

R/W

Description

PG7DDR

PG6DDR

PG5DDR

PG4DDR

PG3DDR

PG2DDR

PG1DDR

PG0DDR

0: Port G pin is an input pin

1: Port G pin is an output pin

PGDDR has the same address as PGPIN, and if

read, the port G pin states will be returned.

HD64F2145 Datasheet(PDF) 254 Page - Renesas Technology Corp

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