Datasheet

Section 15 I
2
C Bus Interface2 (IIC2) (Option)
Rev.6.00 Mar. 18, 2009 Page 634 of 980
REJ09B0050-0600
Table 15.2 Transfer Rate
Bit3 Bit2 Bit1 Bit0 Transfer Rate
CKS3 CKS2 CKS1 CKS0 Clock
φ =
8MHz
φ =
10MHz
φ =
20MHz
φ =
25 MHz
φ =
33 MHz
φ =
34 MHz
*
1
0 φ/28 286 kHz 357 kHz 714 kHz
*
2
893 kHz
*
2
1179
kHz
*
2
1214
kHz
*
2
0
1 φ/40 200 kHz 250 kHz 500 kHz
*
2
625 kHz
*
2
825 kHz
*
2
850 kHz
*
2
0 φ/48 167 kHz 208 kHz 417 kHz
*
2
521 kHz
*
2
688 kHz
*
2
708 kHz
*
2
0
*
3
1
1 φ/64 125 kHz 156 kHz 313 kHz 391 kHz
*
2
516 kHz
*
2
531 kHz
*
2
0 φ/168 47.6 kHz 59.5 kHz 119 kHz 149 kHz 196 kHz 202 kHz 0
1 φ/100 80.0 kHz 100 kHz 200 kHz 250 kHz 330 kHz 340 kHz
0 φ/112 71.4 kHz 89.3 kHz 179 kHz 223 kHz 295 kHz 304 kHz
0
*
3
1
1
1 φ/128 62.5 kHz 78.1 kHz 156 kHz 195 kHz 258 kHz 266 kHz
0 φ/56 143 kHz 179 kHz 357 kHz 446 kHz
*
2
589 kHz
*
2
607 kHz
*
2
1 0
1 φ/80 100 kHz 125 kHz 250 kHz 313 kHz 413 kHz
*
2
425 kHz
*
2
0 φ/96 83.3 kHz 104 kHz 208 kHz 260 kHz 344 kHz 354 kHz
0
1
1 φ/128 62.5 kHz 78.1 kHz 156 kHz 195 kHz 258 kHz 266 kHz
0 φ/336 23.8 kHz 29.8 kHz 59.5 kHz 74.4 kHz 98.2 kHz 101 kHz 1 0
1 φ/200 40.0 kHz 50.0 kHz 100 kHz 125 kHz 165 kHz 170 kHz
1 0 φ/224 35.7 kHz 44.6 kHz 89.3 kHz 112 kHz 147 kHz 152 kHz
1 φ/256 31.3 kHz 39.1 kHz 78.1 kHz 97.7 kHz 129 kHz 133 kHz
Notes: 1. Supported only by the H8S/2368 0.18 μm F-ZTAT Group.
2. Does not conform to the I
2
C bus interface specification (standard mode: max. 100 kHz,
fast mode: max. 400 kHz).
3. If CKS3 and CKS2 are both cleared to 0 (7.5 tcyc bit synchronization) and the operating
frequency is 20 MHz or greater, it may not be possible to maintain the prescribed
transfer rate under certain load conditions. Therefore, a bit synchronization setting other
than 7.5 tcyc should be used if the operating frequency exceeds 20 MHz.