Datasheet
Appendix B Internal I/O Register
Page 1326 of 1434 R01UH0166EJ0600 Rev. 6.00
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
ICMR0—I
2
C Bus Mode Register
ICMR1—I
2
C Bus Mode Register
H'FF7F
H'FF87
IIC0
IIC1
(These functions are not available in the H8S/2695.)
7
MLS
0
R/W
6
WAIT
0
R/W
5
CKS2
0
R/W
4
CKS1
0
R/W
3
CKS0
0
R/W
0
BC0
0
R/W
2
BC2
0
R/W
1
BC1
0
R/W
MSB-first/LSB-first select
0 MSB first
1 LSB first
Wait insert bit
Note: * These rates are outside the ranges stipulated in the I
2
C bus interface specifications
(normal mode: max. 100 kHz, high-speed mode: max. 400 kHz).
0 Send data followed by acknowledge bit.
1 Insert wait between data and acknowledge bit.
SCRX Bit 5 Bit 4 Bit 3 Clock Transfer rate
Bit
5, 6
IICX CKS2 CKS1 CKS0 φ= 5 MHz φ= 8 MHz φ= 10 MHz φ= 16 MHz φ= 20 MHz φ= 25 MHz
0 0 0 0 φ/28 179kHz 286 kHz 357 kHz 571 kHz* 714 kHz* 893 kHz*
1 φ/40 125kHz 200 kHz 250 kHz 400 kHz 500 kHz* 625 kHz*
1 0 φ/48 104kHz 167 kHz 208 kHz 333 kHz 417 kHz* 521 kHz*
1 φ/64 78.1kHz 125 kHz 156 kHz 250 kHz 313 kHz 391 kHz
1 0 0 φ/80 62.5kHz 100 kHz 125 kHz 200 kHz 250 kHz 313 kHz
1 φ/100 50.0kHz 80.0 kHz 100 kHz 160 kHz 200 kHz 250 kHz
1 0 φ/112 44.6kHz 71.4 kHz 89.3 kHz 143 kHz 179 kHz 223 kHz
1 φ/128 39.1kHz 62.5 kHz 78.1 kHz 125 kHz 156 kHz 195 kHz
1 0 0 0 φ/56 89.3kHz 143 kHz 179 kHz 286 kHz 357 kHz 446 kHz*
1 φ/80 62.5kHz 100 kHz 125 kHz 200 kHz 250 kHz 313 kHz
1 0 φ/96 52.1kHz 83.3 kHz 104 kHz 167 kHz 208 kHz 260 kHz
1 φ/128 39.1kHz 62.5 kHz 78.1 kHz 125 kHz 156 kHz 195 kHz
1 0 0 φ/160 31.3kHz 50.0 kHz 62.5 kHz 100 kHz 125 kHz 156 kHz
1 φ/200 25.0kHz 40.0 kHz 50.0 kHz 80.0 kHz 100 kHz 125 kHz
1 0 φ/224 22.3kHz 35.7 kHz 44.6 kHz 71.4 kHz 89.3 kHz 112 kHz
1 φ/256 19.5kHz 31.3 kHz 39.1 kHz 62.5 kHz 78.1 kHz 97.7 kHz
Transmit clock select
Bit counter
Bit 2 Bit 1 Bit 0 Bit/frame
BC2 BC1 BC0 Clock synchronous PC bus format
serial format
0 0 0 8 9
1 1 2
1 0 2 3
1 3 4
1 0 0 4 5
1 5 6
1 0 6 7
1 7 8
Bit
Initial value
R/W
:
:
:
φ= 28 MHz
1000 kHz*
700 kHz*
583 kHz*
438 kHz*
350 kHz
280 kHz
250 kHz
219 kHz
500 kHz*
350 kHz
292 kHz
219 kHz
175 kHz
140 kHz
125 kHz
109 kHz