Hitachi H8S/2199 Hardware Manual page 1071

2
H'D15F: I C Bus Mode Register ICMR1: I
7
Bit :
MLS
0
Initial value :
R/W
R/W :
MSB-first/LSB-first select
0 MSB-first
1 LSB-first
6 5
WAIT CKS2
0 0
R/W R/W
Transfer clock select bits
IICX* CKS2 CKS1 CKS0 Clock
0
1
Note: * See bit 6 in STCR.
Wait insertion bit
0 Data and acknowledge bits transferred consecutively
1 Wait inserted between data and acknowledge bits
(initial value)
2
C Bus Interface
4 3
CKS1 CKS0 BC2
0 0
R/W R/W R/W
Bit counter
BC2 BC1 BC0
0 0
1
0 0
1
φ/28
0 0 0
φ/40
1
φ/48
1 0
φ/64
1
φ/80
1 0 0
φ/100
1
φ/112
1 0
φ/128
1
φ/56
0 0 0
φ/80
1
φ/96
1 0
φ/128
1
φ/160
1 0 0
φ/200
1
φ/224
1 0
φ/256
1
2 1 0
BC1 BC0
0 0 0
R/W R/W
Bit/frame
2
Clock sync I
serial format
0 8
1 1
0 2
1 3
0 4
1 5
0 6
1 7
Transfer rate
φ=8 MHz φ=10 MHz
286 kHz 357 kHz
200 kHz 250 kHz
167 kHz 208 kHz
125 kHz 156 kHz
100 kHz 125 kHz
80.0 kHz 100 kHz
71.4 kHz 89.3 kHz
62.5 kHz 78.1 kHz
143 kHz 179 kHz
100 kHz 125 kHz
83.3 kHz 104 kHz
62.5 kHz 78.1 kHz
50.0 kHz 62.5 kHz
40.0 kHz 50.0 kHz
35.7 kHz 44.6 kHz
31.3 kHz 39.1 kHz
(initial value)
Rev. 1.0, 02/00, page 1069 of 1141
C bus format
9 (Initial value)
2
3
4
5
6
7
8