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2
Section 18 I
C Bus Interface (IIC)
2
Table 18.3 I
C bus Transfer Rate (1)
• TCSS = 0
STCR/
ICMR
IICX3
Bit 5
Bit 4
IICXn
CKS2
CKS1
0
0
0
1
1
0
1
1
0
0
1
1
0
1
Note:
The correct operation cannot be guaranteed since the value is outside the I
*
interface specifications (high-speed mode: max. 400 kHz).
(n = 0 to 5)
Rev. 1.00 Mar. 12, 2008 Page 596 of 1178
REJ09B0403-0100
Bit 3
φ = 20 MHz
CKS0
Clock
φ
0
/28
714.3
φ
1
/40
500.0
φ
0
/48
416.7
φ
1
/64
312.5 kHz
φ
0
/80
250.0 kHz
φ
1
/100
200.0 kHz
φ
0
/112
178.6 kHz
φ
1
/128
156.3 kHz
φ
0
/56
357.1 kHz
φ
1
/80
250.0 kHz
φ
0
/96
208.3 kHz
φ
1
/128
156.3 kHz
φ
0
/160
125.0 kHz
φ
1
/200
100.0 kHz
φ
0
/224
89.3 kHz
φ
1
/256
78.1 kHz
Transfer Rate
φ = 25 MHz
892.9 kHz*
*
kHz
625.0 kHz*
*
kHz
*
520.8 kHz*
kHz
390.6 kHz
312.5 kHz
250.0 kHz
223.2 kHz
195.3 kHz
446.4 kHz*
312.5 kHz
260.4 kHz
195.3 kHz
156.3 kHz
125.0 kHz
111.6 kHz
97.7 kHz
φ = 34 MHz
1214.3 kHz*
850.0 kHz*
708.3 kHz*
531.3 kHz*
425.0 kHz*
340.0 kHz
303.6 kHz
265.6 kHz
607.1 kHz*
425.0 kHz*
354.2 kHz
265.6 kHz
212.5 kHz
170.0 kHz
151.8 kHz
132.8 kHz
2
C bus
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