Datasheet

Section 17 I
2
C Bus Interface (IIC)
Rev. 3.00 Sep. 28, 2009 Page 515 of 910
REJ09B0350-0300
Table 17.4 I
2
C Transfer Rate
STCR ICMR
Bits 5,
6, and 7
Bit 5 Bit 4 Bit 3
Transfer Rate
IICX CKS2 CKS1 CKS0 Clock φ = 8 MHz φ = 10 MHz φ = 16 MHz φ = 20 MHz
0 0 0 0 φ/28 286 kHz 357 kHz 571 kHz* 714 kHz*
0 0 0 1 φ/40 200 kHz 250 kHz 400 kHz 500 kHz*
0 0 1 0 φ/48 167 kHz 208 kHz 333 kHz 417 kHz*
0 0 1 1 φ/64 125 kHz 156 kHz 250 kHz 313 kHz
0 1 0 0 φ/80 100 kHz 125 kHz 200 kHz 250 kHz
0 1 0 1 φ/100 80.0 kHz 100 kHz 160 kHz 200 kHz
0 1 1 0 φ/112 71.4 kHz 89.3 kHz 143 kHz 179 kHz
0 1 1 1 φ/128 62.5 kHz 78.1 kHz 125 kHz 156 kHz
1 0 0 0 φ/56 143 kHz 179 kHz 286 kHz 357 kHz
1 0 0 1 φ/80 100 kHz 125 kHz 200 kHz 250 kHz
1 0 1 0 φ/96 83.3 kHz 104 kHz 167 kHz 208 kHz
1 0 1 1 φ/128 62.5 kHz 78.1 kHz 125 kHz 156 kHz
1 1 0 0 φ/160 50.0 kHz 62.5 kHz 100 kHz 125 kHz
1 1 0 1 φ/200 40.0 kHz 50.0 kHz 80.0 kHz 100 kHz
1 1 1 0 φ/224 35.7 kHz 44.6 kHz 71.4 kHz 89.3 kHz
1 1 1 1 φ/256 31.3 kHz 39.1 kHz 62.5 kHz 78.1 kHz
Notes: n = 0, 1, or 2
* Correct operation cannot be guaranteed since the transfer rate is beyond the I
2
C bus
interface specification (normal mode: maximum 100 kHz, high-speed mode: maximum
400 kHz).