Datasheet

Section 15 I

C Bus Interface (IIC)

Rev. 3.00 Sep. 28, 2009 Page 338 of 710

REJ09B0384-0300

Table 15.3 I

C bus Transfer Rate (1)

• TCSS = 0

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 φ/28 714.3* 892.9*

1 φ/40 500.0* 625.0*

1 0 φ/48 416.7* 520.8*

1 φ/64 312.5 390.6

1 0 0 φ/80 250.0 312.5

1 φ/100 200.0 250.0

1 0 φ/112 178.6 223.2

φ/128 156.3 195.3

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

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)