H8S-2655 Datasheet, PDF (633/1091 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer

Section 14 Serial Communication Interface (SCI)
Table 14.4 BRR Settings for Various Bit Rates (Clocked Synchronous Mode)
Bit Rate
(bit/s)
φ = 2 MHz
φ = 4 MHz
φ = 8 MHz φ = 10 MHz φ = 16 MHz φ = 20 MHz
n
N
n
N
n
N
n
N
n
N
n
N
110
3
70 — — — — — — — — — —
250
2
124 2
249 3
124 — — 3
249 — —
500
1
249 2
124 2
249 — — 3
124 — —
1k
1
124 1
249 2
124 — — 2
249 — —
2.5 k
0
199 1
99 1
199 1
249 2
99 2
124
5k
0
99 0
199 1
99 1
124 1
199 1
249
10 k
0
49 0
99 0
199 0
249 1
99 1
124
25 k
0
19 0
39 0
79 0
99 0
159 0
199
50 k
0
9
0
19 0
39 0
49 0
79 0
99
100 k
0
4
0
9
0
19 0
24 0
39 0
49
250 k
0
1
0
3
0
7
0
9
0
15 0
19
500 k
0
0^* 0
1
0
3
0
4
0
7
0
9
1M
0
0^* 0
1
——0
3
0
4
2.5 M
——0
0^*
—
—
0
1
5M
——0
0^*
Legend:
Blank: Cannot be set.
—:
Can be set, but there will be a degree of error.
*:
Continuous transfer is not possible.
Note: As far as possible, the setting should be made so that the error is no more than 1%.
Rev. 5.00 Sep 14, 2006 page 605 of 1060
REJ09B0331-0500