SH7730 Datasheet, PDF (627/1188 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7780 Series

Section 20 I2C Bus Interface (IIC)
Bit
3 to 0
Bit Name
CKS[3:0]
Initial
Value
0000
R/W Description
R/W Transfer Clock Select
These bits should be set according to the necessary
transfer rate (table 20.4) in master mode.
Table 20.4 Transfer Rate
Bit 3 Bit 2 Bit 1 Bit 0
Transfer Rate (kHz)
Pφ =
Pφ =
Pφ =
Pφ =
Pφ =
CKS3 CKS2 CKS1 CKS0 Clock 16.7 MHz 20.0 MHz 25.0 MHz 26.7 MHz 33.3 MHz
0
0
0
0
Pφ/44 379 kHz 455 kHz 568 kHz 606 kHz 758 kHz
1
Pφ/52 321 kHz 385 kHz 481 kHz 513 kHz 641 kHz
1
0
Pφ/64 260 kHz 313 kHz 391 kHz 417 kHz 521 kHz
1
Pφ/72 231 kHz 278 kHz 347 kHz 370 kHz 463 kHz
1
0
0
Pφ/84 198 kHz 238 kHz 298 kHz 317 kHz 397 kHz
1
Pφ/92 181 kHz 217 kHz 272 kHz 290 kHz 362 kHz
1
0
Pφ/100 167 kHz 200 kHz 250 kHz 267 kHz 333 kHz
1
Pφ/108
Setting prohibited
1
0
0
0
Pφ/176 94.7 kHz 114 kHz 142 kHz 152 kHz 189 kHz
1
Pφ/208 80.1 kHz 96.2 kHz 120 kHz 128 kHz 160 kHz
1
0
Pφ/256 65.1 kHz 78.1 kHz 97.7 kHz 104 kHz 130 kHz
1
Pφ/288 57.9 kHz 69.4 kHz 86.8 kHz 92.6 kHz 116 kHz
1
0
0
Pφ/336 49.6 kHz 59.5 kHz 74.4 kHz 79.4 kHz 99.2 kHz
1
Pφ/368 45.3 kHz 54.3 kHz 67.9 kHz 72.5 kHz 90.6 kHz
1
0
Pφ/400 41.7 kHz 50.0 kHz 62.5 kHz 66.7 kHz 83.3 kHz
1
Pφ/432
Setting prohibited
Note: The settings should satisfy external specifications.
Rev. 1.00 Sep. 19, 2007 Page 579 of 1136
REJ09B0359-0100