HD6432138SW datasheet(513/1061 Pages) RENESAS

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Section 16 I

2C Bus Interface [H8S/2138 Group Option]

Rev. 4.00 Jun 06, 2006 page 459 of 1004

REJ09B0301-0400

16.1.4

Table 16.2 summarizes the registers of the I

2C bus interface.

Table 16.2

Channel

Name

Abbreviation

R/W

Initial Value

Address*

2C bus control register

ICCR0

R/W

H'01

H'FFD8

2C bus status register

ICSR0

R/W

H'00

H'FFD9

2C bus data register

ICDR0

R/W

—

H'FFDE*

2C bus mode register

ICMR0

R/W

H'00

H'FFDF*

Slave address register

SAR0

R/W

H'00

H'FFDF*

Second slave address

SARX0

R/W

H'01

H'FFDE*

2C bus control register

ICCR1

R/W

H'01

H'FF88

2C bus status register

ICSR1

R/W

H'00

H'FF89

2C bus data register

ICDR1

R/W

—

H'FF8E*

2C bus mode register

ICMR1

R/W

H'00

H'FF8F*

Slave address register

SAR1

R/W

H'00

H'FF8F*

Second slave address

SARX1

R/W

H'01

H'FF8E*

Common

Serial timer control

STCR

R/W

H'00

H'FFC3

DDC switch register

DDCSWR

R/W

H'0F

H'FEE6

MSTPCRH

R/W

H'3F

H'FF86

Module stop control

MSTPCRL

R/W

H'FF

H'FF87

Notes: 1. Lower 16 bits of the address.

2. The register that can be written or read depends on the ICE bit in the I

2C bus control

2C bus

mode register can be accessed when ICE = 1.

The I

2C bus interface registers are assigned to the same addresses as other registers.

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