Datasheet

Section 17 I

C Bus Interface (IIC)

Rev. 2.00 Sep. 28, 2009 Page 460 of 870

REJ09B0429-0200

Table 17.3 I

C bus Transfer Rate (1)

• TCSS = 0

STCR/ ICMR

IICX3 Bit 5 Bit 4 Bit 3 Transfer Rate

IICXn CKS2 CKS1 CKS0

Clock

φ = 20 MHz φ = 25 MHz φ = 34 MHz

0 0 0 0 φ/28 714.3 kHz* 892.9 kHz* 1214.3 kHz*

1 φ/40 500.0 kHz* 625.0 kHz* 850.0 kHz*

1 0 φ/48 416.7 kHz* 520.8 kHz* 708.3 kHz*

1 φ/64 312.5 kHz 390.6 kHz 531.3 kHz*

1 0 0 φ/80 250.0 kHz 312.5 kHz 425.0 kHz*

1 φ/100 200.0 kHz 250.0 kHz 340.0 kHz

1 0 φ/112 178.6 kHz 223.2 kHz 303.6 kHz

1 φ/128 156.3 kHz 195.3 kHz 265.6 kHz

1 0 0 0 φ/56 357.1 kHz 446.4 kHz* 607.1 kHz*

1 φ/80 250.0 kHz 312.5 kHz 425.0 kHz*

1 0 φ/96 208.3 kHz 260.4 kHz 354.2 kHz

1 φ/128 156.3 kHz 195.3 kHz 265.6 kHz

1 0 0 φ/160 125.0 kHz 156.3 kHz 212.5 kHz

1 φ/200 100.0 kHz 125.0 kHz 170.0 kHz

1 0 φ/224 89.3 kHz 111.6 kHz 151.8 kHz

1 φ/256 78.1 kHz 97.7 kHz 132.8 kHz

Note: * The correct operation cannot be guaranteed since the value is outside the I

C bus

interface specifications (high-speed mode: max. 400 kHz).

(n = 0 to 5)