Datasheet

Section 18 I
2
C Bus Interface (IIC)
Rev. 2.00 Aug. 20, 2008 Page 599 of 1198
REJ09B0403-0200
Table 18.3 I
2
C bus Transfer Rate (2)
• TCSS = 1
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/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 345.2 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
1 0 0 0 φ/112 178.6 kHz 223.2 kHz 303.6 kHz
1 φ/160 125.0 kHz 156.3 kHz 212.5 kHz
1 0 φ/190 104.2 kHz 130.2 kHz 177.1 kHz
1 φ/256 78.1 kHz 97.7 kHz 132.8 kHz
1 0 0 φ/320 62.5 kHz 78.1 kHz 106.3 kHz
1 φ/400 50.0 kHz 62.5 kHz 85.0 kHz
1 0 φ/448 44.6 kHz 55.8 kHz 75.9 kHz
1 φ/512 39.1 kHz 48.8 kHz 66.4 kHz
Note: * The correct operation cannot be guaranteed since the value is outside the I
2
C bus
interface specifications (high-speed mode: max. 400 kHz).
(n = 0 to 5)