R8C2K datasheet(78/471 Pages) RENESAS

78 / 471 page

R8C/2K Group, R8C/2L Group

7. Programmable I/O Ports

Rev.1.10

Dec 21, 2007

Page 61 of 450

REJ09B0406-0110

X: 0 or 1

NOTES:

Pulled up by setting the PU03 bit in the PUR0 register to 1.

N-channel open drain output by setting the NCH bit in the U0C0 register to 1.

X: 0 or 1

NOTES:

Pulled up by setting the PU03 bit in the PUR0 register to 1.

Set the TOPCR bit in the TRAIOC register to 0 in modes except for pulse output mode.

X: 0 or 1

NOTE:

Pulled up by setting the PU03 bit in the PUR0 register to 1.

Table 7.16

Port P1_4/TXD0

PD1

U0MR

Function

Bit

PD1_4

SMD2

SMD1

SMD0

Setting

value

0000

Input port(1)

1000

Output port

001

TXD0 output(2)

100

101

110

Table 7.17

Port P1_5/RXD0/(TRAIO)/(INT1)

PD1

TRAIOC

TRAMR

INTEN

Function

Bit

PD1_5

TIOSEL

TOPCR(2)

TMOD2

TMOD1

TMOD0

INT1EN

Setting

value

XXX

Input port(1)

10010

00000

XXX

Output port

0000

XXX

RXD0 input(1)

Other than 001b

Other than 000b, 001b

TRAIO input(1)

00001

INT1

10011

Other than 000b, 001b

TRAIO input/INT1(1)

0001

TRAIO pulse output

Table 7.18

Port P1_6/CLK0

PD1

U2MR

Function

Bit

PD1_6

SMD2

SMD1

SMD0

CKDIR

Setting

Value

Input port(1)

Other than 001b

Output port

001

CLK0 output

CLK0 input(1)

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