r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 520

• Manufacturer Part Number: r5f21368sdfp
• Description: Renesas Mcu R8c Family / R8c/3xt-a Series
• Manufacturer: Renesas Electronics Corporation.

Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
21.4
21.4.1
Table 21.9
IICTCHALF
21.4.1.1
IICCR Register
0
When the MST bit in the SICR1 register is 0, the transfer clock is the external clock input from the SCL pin.
When the MST bit is 1, the transfer clock is the internal clock selected by bits CKS0 to CKS3 in the SICR1
register and bits IICTCTWI and IICTCHALF in the IICCR register, and the transfer clock is output from the
SCL pin. Tables 21.9 and 21.10 list the Transfer Rate Examples.
I
2
C bus Interface Operation
Items Common to I
IICTCTWI
Preliminary document
Specifications in this document are tentative and subject to change.
Transfer Clock
Transfer Rate Examples (1)
0
CKS3 CKS2 CKS1 CKS0
0
1
SICR1 Register
0
1
0
1
2
0
1
0
1
0
1
0
1
C bus Interface and Clock Synchronous Serial Mode
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Transfer
f1/100
f1/112
f1/128
f1/128
f1/160
f1/200
f1/224
f1/256
Clock
f1/28
f1/40
f1/48
f1/64
f1/80
f1/56
f1/80
f1/96
78.1 kHz
62.5 kHz
50.0 kHz
44.6 kHz
39.1 kHz
89.3 kHz
62.5 kHz
52.1 kHz
39.1 kHz
31.3 kHz
25.0 kHz
22.3 kHz
19.5 kHz
179 kHz
125 kHz
104 kHz
5 MHz
f1 =
80.0 kHz
71.4 kHz
62.5 kHz
83.3 kHz
62.5 kHz
50.0 kHz
40.0 kHz
35.7 kHz
31.3 kHz
286 kHz
200 kHz
167 kHz
125 kHz
100 kHz
143 kHz
100 kHz
8 MHz
f1 =
21. Clock Synchronous Serial Interface
Transfer Rate
89.3 kHz
78.1 kHz
78.1 kHz
62.5 kHz
50.0 kHz
44.6 kHz
39.1 kHz
357 kHz
250 kHz
208 kHz
156 kHz
125 kHz
100 kHz
179 kHz
125 kHz
104 kHz
10 MHz
f1 =
80.0 kHz
71.4 kHz
62.5 kHz
571 kHz
400 kHz
333 kHz
250 kHz
200 kHz
160 kHz
143 kHz
125 kHz
286 kHz
200 kHz
167 kHz
125 kHz
100 kHz
16 MHz
f1 =
Page 489 of 725
89.3 kHz
78.1 kHz
714 kHz
500 kHz
417 kHz
313 kHz
250 kHz
200 kHz
179 kHz
156 kHz
357 kHz
250 kHz
208 kHz
156 kHz
125 kHz
100 kHz
20 MHz
f1 =