HD64F3687HV Datasheet, PDF (341/538 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series

Section 17 I²C Bus Interface 2 (IIC2)
Initial
Bit
Bit Name Value R/W Description
3
CKS3
0
R/W Transfer Clock Select 3 to 0
2
CKS2
0
1
CKS1
0
0
CKS0
0
R/W These bits should be set according to the necessary
R/W
R/W
transfer rate (see table 17.2) in master mode. In slave
mode, these bits are used for reservation of the setup
time in transmit mode. The time is 10 t when CKS3 = 0
cyc
and 20 t_cyc when CKS3 = 1.
Table 17.2 Transfer Rate
Bit 3 Bit 2 Bit 1 Bit 0
CKS3 CKS2 CKS1 CKS0 Clock
0
0
0
0
φ/28
1
φ/40
1
0
φ/48
1
φ/64
1
0
0
φ/80
1
φ/100
1
0
φ/112
1
φ/128
1
0
0
0
φ/56
1
φ/80
1
0
φ/96
1
φ/128
1
0
0
φ/160
1
φ/200
1
0
φ/224
1
φ/256
φ = 5 MHz
179 kHz
125 kHz
104 kHz
78.1 kHz
62.5 kHz
50.0 kHz
44.6 kHz
39.1 kHz
89.3 kHz
62.5 kHz
52.1 kHz
39.1 kHz
31.3 kHz
25.0 kHz
22.3 kHz
19.5 kHz
Transfer Rate
φ = 8 MHz φ = 10 MHz φ = 16 MHz φ = 20 MHz
286 kHz 357 kHz 571 kHz 714 kHz
200 kHz 250 kHz 400 kHz 500 kHz
167 kHz 208 kHz 333 kHz 417 kHz
125 kHz 156 kHz 250 kHz 313 kHz
100 kHz 125 kHz 200 kHz 250 kHz
80.0 kHz 100 kHz 160 kHz 200 kHz
71.4 kHz 89.3 kHz 143 kHz 179 kHz
62.5 kHz 78.1 kHz 125 kHz 156 kHz
143 kHz 179 kHz 286 kHz 357 kHz
100 kHz 125 kHz 200 kHz 250 kHz
83.3 kHz 104 kHz 167 kHz 208 kHz
62.5 kHz 78.1 kHz 125 kHz 156 kHz
50.0 kHz 62.5 kHz 100 kHz 125 kHz
40.0 kHz 50.0 kHz 80.0 kHz 100 kHz
35.7 kHz 44.6 kHz 71.4 kHz 89.3 kHz
31.3 kHz 39.1 kHz 62.5 kHz 78.1 kHz
Rev.5.00 Nov. 02, 2005 Page 307 of 500
REJ09B0027-0500