HD64F2145 datasheet(206/829 Pages) RENESAS

206 / 829 page

Rev. 2.0, 08/02, page 166 of 788

• P23/A11/PW11, P22/A10/PW10, P21/A9/PW9, P20/A8/PW8

The pin function is switched as shown below according to the combination of the OEm bit in

PWOERB of PWM, the P2nDDR bit, and operating mode.

Operating

Mode

Mode 1

Mode 2, 3 (EXPE = 1)

Mode 2, 3 (EXPE = 0)

P2nDDR

—

OEm

—

Pin Function

A11 to A8

output

pins

P23 to

P20 input

pins

A11 to

A8 output

pins

PW11 to

PW8

output

pins

P23 to

P20 input

pins

P23 to

P20

output

pins

PW11 to

PW8

output

pins

Legend

n = 3 to 0

m = 11 to 8

8.3.5

Port 2 Input Pull-Up MOS

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 8.3 summarizes the input pull-up MOS states.

Table 8.3

Input Pull-Up MOS States (Port 2)

Mode

Reset

Hardware

Standby Mode

Software

Standby Mode

In Other

Operations

1Off

Off

2, 3

Off

On/Off

Legend

Off:

Input pull-up MOS is always off.

On/Off: On when the pin is in the input state, P2DDR = 0, and P2PCR = 1; otherwise off.

HD64F2145 Datasheet(PDF) 206 Page - Renesas Technology Corp

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