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2
Table 18.3 I
C bus Transfer Rate (2)
• TCSS = 1
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)
Bit 3
φ = 20 MHz
CKS0
Clock
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
φ
0
/112
178.6 kHz
φ
1
/160
125.0 kHz
φ
0
/190
104.2 kHz
φ
1
/256
78.1 kHz
φ
0
/320
62.5 kHz
φ
1
/400
50.0 kHz
φ
0
/448
44.6 kHz
φ
1
/512
39.1 kHz
2
Section 18 I
C Bus Interface (IIC)
Transfer Rate
φ = 25 MHz
446.4 kHz*
312.5 kHz
260.4 kHz
195.3 kHz
156.3 kHz
125.0 kHz
111.6 kHz
97.7 kHz
223.2 kHz
156.3 kHz
130.2 kHz
97.7 kHz
78.1 kHz
62.5 kHz
55.8 kHz
48.8 kHz
Rev. 1.00 Mar. 12, 2008 Page 597 of 1178
φ = 34 MHz
607.1 kHz*
425.0 kHz*
345.2 kHz
265.6 kHz
212.5 kHz
170.0 kHz
151.8 kHz
132.8 kHz
303.6 kHz
212.5 kHz
177.1 kHz
132.8 kHz
106.3 kHz
85.0 kHz
75.9 kHz
66.4 kHz
2
C bus
REJ09B0403-0100
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