HD6432351 datasheet(412/1025 Pages) RENESAS

412 / 1025 page

Section 9 I/O Ports

Rev. 3.00 Sep 15, 2006 page 378 of 988

REJ09B0330-0300

Port B MOS Pull-Up Control Register (PBPCR) [H8S/2351 Only]

PB7PCR

R/W

PB6PCR

R/W

PB5PCR

R/W

PB4PCR

R/W

PB3PCR

R/W

PB0PCR

R/W

PB2PCR

R/W

PB1PCR

R/W

Bit

Initial value

R/W

PBPCR is an 8-bit readable/writable register that controls the MOS input pull-up function

incorporated into port B on an individual bit basis.

When a PBDDR bit is cleared to 0 (input port setting) in mode 2, 3, 6, or 7, setting the

corresponding PBPCR bit to 1 turns on the MOS input pull-up for the corresponding pin.

PBPCR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its

prior state after a manual reset, and in software standby mode.

9.9.3

Pin Functions

Modes 1, 4, and 5

In modes 1, 4, and 5, port B pins are automatically designated as address outputs.

Port B pin functions in modes 1, 4, and 5 are shown in figure 9.12.

A15

A14

A13

A12

A11

A10

(output)

Port B

Figure 9.12 Port B Pin Functions (Modes 1, 4, and 5)

HD6432351 Datasheet(PDF) 412 Page - Renesas Technology Corp

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