Datasheet

Section 16 I
2
C Bus Interface 2 (IIC2) (Option)
Rev.7.00 Mar. 18, 2009 page 776 of 1136
REJ09B0109-0700
Table 16.2 Transfer Rate
Bit 3 Bit 2 Bit 1 Bit 0
Transfer Rate
CKS3 CKS2 CKS1 CKS0 Clock
φ =
8 MHz
φ =
10 MHz
φ =
20 MHz
φ =
25 MHz
φ =
33 MHz
φ =
34 MHz*
1
φ =
35 MHz*
2
0 φ/28 286 kHz 357 kHz 714 kHz*
3
893 kHz*
3
1179 kHz*
3
1214 kHz*
3
1250 kHz*
3
0
1 φ/40 200 kHz 250 kHz 500 kHz*
3
625 kHz*
3
825 kHz*
3
850 kHz*
3
875 kHz*
3
0 φ/48 167 kHz 208 kHz 417 kHz*
3
521 kHz*
3
688 kHz*
3
708 kHz*
3
729 kHz*
3
0*
4
1
1 φ/64 125 kHz 156 kHz 313 kHz 391 kHz 516 kHz*
3
531 kHz*
3
547 kHz*
3
0 φ/168 47.6 kHz 59.5 kHz 119 kHz 149 kHz 196 kHz 202 kHz 208 kHz 0
1 φ/100 80.0 kHz 100 kHz 200 kHz 250 kHz 330 kHz 340 kHz 350 kHz
0 φ/112 71.4 kHz 89.3 kHz 179 kHz 223 kHz 295 kHz 304 kHz 313 kHz
0*
4
1
1
1 φ/128 62.5 kHz 78.1 kHz 156 kHz 195 kHz 258 kHz 266 kHz 273 kHz
0 φ/56 143 kHz 179 kHz 357 kHz 446 kHz 589 kHz 607 kHz 625 kHz 0
1 φ/80 100 kHz 125 kHz 250 kHz 313 kHz 413 kHz 425 kHz 438 kHz
0 φ/96 83.3 kHz 104 kHz 208 kHz 260 kHz 344 kHz 354 kHz 365 kHz
0
1
1 φ/128 62.5 kHz 78.1 kHz 156 kHz 195 kHz 258 kHz 266 kHz 273 kHz
0 φ/336 23.8 kHz 29.8 kHz 59.5 kHz 74.4 kHz 98.2 kHz 101 kHz 104 kHz 0
1 φ/200 40.0 kHz 50.0 kHz 100 kHz 125 kHz 165 kHz 170 kHz 175 kHz
1
1
1 0 φ/224 35.7 kHz 44.6 kHz 89.3 kHz 112 kHz 147 kHz 152 kHz 156 kHz
1 φ/256 31.3 kHz 39.1 kHz 78.1 kHz 97.7 kHz 129 kHz 133 kHz 137 kHz
Notes: 1. Supported on the H8S/2378 0.18μm F-ZTAT Group and H8S/2378R 0.18μm F-ZTAT
Group only.
2. Supported on the H8S/2378 only.
3. I
2
C bus interface specification (standard mode: max. 100 kHz, fast mode: max. 400
kHz).
4. Due to load conditions, etc., it may not be possible to attain the specified transfer rate
when CKS3 and CKS2 are both cleared to 0 (bit period: 7.5 tcyc) and the operating
frequency is 20 MHz or higher. Use a bit period other than 7.5 tcyc when the operating
frequency exceeds 20 MHz.