M306H7MG-XXXFP Datasheet, PDF(150/329 Page) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with DATA ACQUISITION CONTROLLER

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M306H7MG-XXXFP Datasheet, PDF (150/329 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with DATA ACQUISITION CONTROLLER

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M306H7MG-XXXFP/MC-XXXFP/FGFP

11. MULTI-MASTER I2C BUS INTERFACE

I2C clock control register

b7 b6 b5 b4 b3 b2 b1 b0

Symbol

IIC0S2

Address

02E416

When reset

0016

Figure 11.6

Bit Symbol

Bit name

Function

RW

CCR0

SCL frequency control Setup value of Standard

bits

CCR4âCCR0 clock mode

High speed RW

clock mode

CCR1

00 to 02 Setup disabled Setup disabled

03 Setup disabled

333

CCR2

04 Setup disabled

250

05

100

400 (See note)

06

83.3

166

CCR3

:

500/CCR value 1000/CCR value

1D

17.2

34.5

CCR4

1E

16.6

33.3

1F

16.1

32.3

(at BCLK = 10 MHz, unit : kHz)

FAST MODE SCL mode specification 0 : Standard clock mode

RW

bit

1 : High-speed clock mode

ACK BIT ACK bit

0 : ACK is returned.

RW

1 : ACK is not returned.

ACK

ACK clock bit

0 : No ACK clock

RW

1 : ACK clock

Note: At 400 kHz in the high-speed clock mode, the duty is as below.

â0â period : â1â period = 3 : 2

In the other cases, the duty is as below.

â0â period : â1â period = 1 : 1

I2C clock control register

Rev.2.10 Oct 25, 2006 Page 150 of 326

REJ03B0152-0210

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