R8C2K datasheet(74/471 Pages) RENESAS

74 / 471 page

R8C/2K Group, R8C/2L Group

7. Programmable I/O Ports

Rev.1.10

Dec 21, 2007

Page 57 of 450

REJ09B0406-0110

Figure 7.12

Registers PUR0, and PUR1

Pull-Up Control Register 1

Symbol

Address

After Reset

PUR1

00FDh

XX000000b

Bit Symbol

Bit Name

Function

NOTE:

Nothing is assigned. If necessary, set to 0.

When read, the content is undefined.

Nothing is assigned. If necessary, set to 0.

When read, the content is undefined.

—

(b7-b2)

—

PU11

P4_5 pull-up(1)

—

(b0)

0 : Not pulled up

1 : Pulled up

b7 b6 b5 b4

When this bit is set to 1 (pulled up), the pin w hose direction bit is set to 0 (input mode) is pulled up.

b3 b2 b1

Pull-Up Control Register 0

Symbol

Address

After Reset

PUR0

00FCh

00h

Bit Symbol

Bit Name

Function

NOTE:

PU01

P2_4 to P2_7 pull-up(1)

P2_0 to P2_3 pull-up(1)

P0_5 pull-up(1)

P0_0 to P0_3 pull-up(1)

PU00

0 : Not pulled up

1 : Pulled up

PU04

PU02

PU03

P1_4 to P1_7 pull-up(1)

P1_0 to P1_3 pull-up(1)

b7 b6 b5 b4 b3 b2 b1

When this bit is set to 1 (pulled up), the pin w hose direction bit is set to 0 (input mode) is pulled up.

PU07

PU05

P3_4 to P3_5 pll-up(1)

PU06

P3_3 pll-up(1)

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