HD64F2145 datasheet(202/829 Pages) RENESAS

202 / 829 page

Rev. 2.0, 08/02, page 162 of 788

8.2.4

Pin Functions

• P17/A7/PW7 to P10/A0/PW0

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

PWOERA of PWM, the P1nDDR bit, and operating mode.

Operating

Mode

Mode 1

Mode 2, 3 (EXPE = 1)

Mode 2, 3 (EXPE = 0)

P1nDDR

—

OEn

—

Pin Function

A7 to A0

output

pins

P17 to

P10 input

pins

A7 to A0

output

pins

PW7 to

PW0

output

pins

P17 to

P10 input

pins

P17 to

P10

output

pins

PW7 to

PW0

output

pins

Legend

n = 7 to 0

8.2.5

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 8.2 summarizes the input pull-up MOS states.

Table 8.2

Input Pull-Up MOS States (Port 1)

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, P1DDR = 0, and P1PCR = 1; otherwise off.

HD64F2145 Datasheet(PDF) 202 Page - Renesas Technology Corp

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