R01UH0823EJ0100 Rev.1.00 Page 1143 of 1823
Jul 31, 2019
RX23W Group 35. I
2
C-bus Interface (RIICa)
Note: ICBRH/ICBRL settings in these tables are calculated using the following values:
SCL0 line rising time (tr): 100 kbps or less (Sm): 1000 ns, 400 kbps or less (Fm): 300 ns
SCL0 line falling time (tf): 400 kbps or less (Sm/Fm): 300 ns
For the specified values of SCL0 line rising time (tr) and SCL0 line falling time (tf), see the I
2
C-bus specification from NXP
Semiconductors.
Table 35.5 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)
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)
Transfer
Rate
(kbps)
Operating Frequency PCLK (MHz)
30 32
CKS[2:0] ICBRH ICBRL CKS[2:0] ICBRH ICBRL
10 110b 20 (F4h) 24 (F8h) 110b 22 (F6h) 25 (F9h)
50 100b 15 (EFh) 18 (F2h) 100b 16 (F0h) 19 (F3h)
100 011b 14 (EEh) 17 (F1h) 011b 15 (EFh) 18 (F2h)
400 001b 8 (E8h) 19 (F3h) 001b 9 (E9h) 20 (F4h)
To Next Page
Loading...
Need help?
General
