R8CSLASH2G datasheet(94/344 Pages) RENESAS

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R8C/2G Group

8. I/O Ports

Rev.1.00

Apr 04, 2008

Page 74 of 318

REJ09B0387-0100

Figure 8.8

PMR Register

Figure 8.9

Registers PUR0 and PUR1

Port Mode Register

Symbol

Address

After Reset

PMR

00F8h

00h

Bit Symbol

Bit Name

Function

INT1

_____

pin select bit

b7 b6 b5 b4

b3 b2 b1

INT1SEL

0 : P1_5, P1_7

1 : P3_6

—

(b7-b1)

—

Nothing is assigned. If necessary, set to 0.

When read, the content is 0.

Pull-Up Control Register 0

Symbol

Address

After Reset

PUR0

00FCh

00h

Bit Symbol

Bit Name

Function

NOTE:

—

P0_4 to P0_7 pull-up(1)

PU03

P1_4 to P1_7 pull-up(1)

P1_0 to P1_3 pull-up(1)

PU01

—

(b0)

b7 b6 b5 b4 b3 b2 b1

0 : Not pulled up

1 : Pulled up

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

P3_4 to P3_7 pull-up(1)

PU06

P3_0 to P3_3 pull-up(1)

—

(b5-b4)

PU02

Nothing is assigned. If necessary, set to 0.

When read, the content is 0.

0 : Not pulled up

1 : Pulled up

Nothing is assigned. If necessary, set to 0.

When read, the content is 0.

Pull-Up Control Register 1

Symbol

Address

After Reset

PUR1

00FDh

00h

Bit Symbol

Bit Name

Function

NOTE:

P6_4 to P6_6 pull-up(1)

0 : Not pulled up

1 : Pulled up

PU14

P6_0, P6_3 pull-up(1)

0 : Not pulled up

1 : Pulled up

Nothing is assigned. If necessary, set to 0.

When read, the content is 0.

PU11

P4_5 pull-up(1)

—

(b7-b6)

Nothing is assigned. If necessary, set to 0.

When read, the content is 0.

PU10

P4_3 pull-up(1)

—

(b3-b2)

PU15

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

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