R8C2G datasheet(93/344 Pages) RENESAS

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R8C/2G Group

8. I/O Ports

Rev.1.00

Apr 04, 2008

Page 73 of 318

REJ09B0387-0100

Figure 8.7

Registers PINSR2, PINSR3, and PINSR4

Pin Select Register 2

Symbol

Address

After Reset

PINSR2

00F6h

00h

Bit Symbol

Bit Name

Function

TRAO pin select bit

Nothing is assigned. If necessary, set to 0.

When read, the content is 0.

TRAOSEL

0 : P3_0

1 : P3_7

TRBOSEL

—

(b7)

0 : P3_1

1 : P1_3

TRBO pin select bit

—

(b5)

Nothing is assigned. If necessary, set to 0.

When read, the content is 0.

—

(b3-b0)

Nothing is assigned. If necessary, set to 0.

When read, the content is 0.

b7 b6 b5 b4

b3 b2 b1

Pin Select Register 3

Symbol

Address

After Reset

PINSR3

00F7h

00h

Bit Symbol

Bit Name

Function

—

Nothing is assigned. If necessary, set to 0.

When read, the content is 0.

—

(b7-b6)

—

TREOSEL

—

(b4-b0)

TREO pin select bit

b7 b6 b5 b4

0 : P6_0

1 : P0_4

b3 b2 b1

Nothing is assigned. If necessary, set to 0.

When read, the content is 0.

Pin Select Register 4

Symbol

Address

After Reset

PINSR4

02FBh

00h

Bit Symbol

Bit Name

Function

KI0

____

pin select bit

KI1

____

pin select bit

TREO pin select 2 bit

0 : Voltage monitor 1, voltage monitor 2

1 : Comparator 1, comparator 2

b3 b2 b1

b7 b6 b5 b4

COMPSEL

TRFOSEL

000

TRFO11 pin select bit

0 : P3_4

1 : P3_7

Voltage monitor/comparator

select bit

KI0SEL

0 : P1_0

1 : P0_7

—

(b6-b4)

TREOSEL2

Set to 0.

Reserved bits

KI1SEL

0 : P1_1

1 : P6_6

0 : TREOSEL bit in PINSR3 register enabled

1 : P6_5

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