RX610 Group
22. I
2
C Bus Interface (RIIC)
R01UH0032EJ0120 Rev.1.20
Page 724 of 1006
Feb 20, 2013
Table 22.6 shows examples of ICBRH/ICBRL settings.
Table 22.6 Examples of ICBRH/ICBRL Settings for Transfer Rate
Transfer
Rate
(kbps)
Operating Frequency PCLK (MHz)
8
10
12.5
CKS
[2:0]
ICBRH
ICBRL
CKS
[2:0]
ICBRH
ICBRL
CKS
[2:0]
ICBRH
ICBRL
10
100b
22 (F6h)
25 (F9h)
101b
13 (EDh)
15 (EFh)
101b
16 (F0h)
20 (F4h)
50
010b
16 (F0h)
19 (F3h)
010b
21 (F5h)
24 (F8h)
011b
12 (ECh)
15 (EFh)
100
001b
15 (EFh)
18 (F2h)
001b
19 (F3h)
23 (F7h)
001b
24 (F8h)
29 (FDh)
400
000b
4 (E4h)
10 (EAh)
000b
5 (E5h)
12 (ECh)
000b
7 (E7h)
16 (F0h)
1000
000b
2 (E2h)
3 (E3h)
000b
2 (E2h)
4 (E4h)
000b
3 (E3h)
6 (E6h)
Transfer
Rate
(kbps)
Operating Frequency PCLK (MHz)
16
20
25
CKS
[2:0]
ICBRH
ICBRL
CKS
[2:0]
ICBRH
ICBRL
CKS
[2:0]
ICBRH
ICBRL
10
101b
22 (F6h)
25 (F9h)
110b
13 (EDh)
15 (EFh)
110b
16 (F0h)
20 (F4h)
50
011b
16 (F0h)
19 (F3h)
011b
21 (F5h)
24 (F8h)
100b
12 (ECh)
15 (EFh)
100
010b
15 (EFh)
18 (F2h)
010b
19 (F3h)
23 (F7h)
010b
24 (F8h)
29 (FDh)
400
000b
9 (E9h)
20 (F4h)
000b
11 (EBh)
25 (F9h)
001b
7 (E7h)
16 (F0h)
1000
000b
4 (E4h)
7 (E7h)
000b
5 (E5h)
9 (E9h)
000b
6 (E6h)
12 (ECh)
Transfer
Rate
(kbps)
Operating Frequency PCLK (MHz)
30
33
50
CKS
[2:0]
ICBRH
ICBRL
CKS
[2:0]
ICBRH
ICBRL
CKS
[2:0]
ICBRH
ICBRL
10
110b
20 (F4h)
24 (F8h)
110b
22 (F6h)
26 (FAh)
111b
16 (F0h)
20 (F4h)
50
100b
15 (EFh)
18 (F2h)
100b
17 (F1h)
20 (F4h)
100b
26 (FAh)
31 (FFh)
100
010b
2 (E2h)
3 (E3h)
011b
16 (F0h)
19 (F3h)
011b
24 (F8h)
29 (FDh)
400
001b
8 (E8h)
19 (F3h)
001b
9 (E9h)
21 (F5h)
010b
7 (E7h)
16 (F0h)
1000
000b
7 (E7h)
14 (EEh)
000b
8 (E8h)
16 (F0h)
000b
12 (ECh)
24 (F8h)
Note:
ICBRH/ICBRL settings in these tables are calculated using the following values:
SCLn line rising time (tr): 100 kbps or less, [Sm]: 1000 ns, 400 kbps or less, [Fm]: 300 ns, 1 Mbps or less, [Fm+]: 120 ns
SCLn line falling time (tf): 400 kbps or less, [Sm/Fm]: 300 ns, 1 Mbps or less, [Fm+]: 120 ns
For the specified values of SCLn line rising time (tr) and SCLn line falling time (tf), see the I
2
C bus standard from NXP
Semiconductors.
Summary of Contents for RX600 Series
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