Datasheet

Section 15 I

C Bus Interface (IIC)

Rev. 3.00 Sep. 28, 2009 Page 339 of 710

REJ09B0384-0300

Table 15.3 I

C bus Transfer Rate (2)

• TCSS = 1

STCR/ ICMR

IICX3 Bit 5 Bit 4 Bit 3 Transfer Rate (MHz)

IICXn CKS2 CKS1 CKS0

Clock

φ = 20 MHz φ = 25 MHz

0 0 0 0 φ/56 357.1 446.4*

1 φ/80 250.0 312.5

1 0 φ/96 208.3 260.4

1 φ/128 156.3 195.3

1 0 0 φ/160 125.0 156.3

1 φ/200 100.0 125.0

1 0 φ/224 89.3 111.6

1 φ/256 78.1 97.7

1 0 0 0 φ/112 178.6 223.2

1 φ/160 125.0 156.3

1 0 φ/190 104.2 130.2

1 φ/256 78.1 97.7

1 0 0 φ/320 62.5 78.1

1 φ/400 50.0 62.5

1 0 φ/448 44.6 55.8

1 φ/512 39.1 48.8

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 3)