Renesas H8 Series Hardware Manual page 394

Section 10 Serial Communication Interface
Table 10.6 Examples of BRR Settings for Various Bit Rates (Synchronous Mode) (2)
Bit Rate
(bit/s) n
200 —
250 —
300 —
500 —
1K —
2.5K —
5K 0
10K 0
25K 0
50K 0
100K —
250K 0
500K —
1M —
Blank: Cannot be set.
— : A setting can be made, but an error will result.
Notes: The value set in BRR is given by the following equation:
φ
N =
(4 • 2
where B: Bit rate (bit/s)
N: Baud rate generator BRR setting (0 ≤ N ≤ 255)
φ: System clock frequency
n: Baud rate generator input clock number (n = 0, 2, or 3)
(The relation between n and the clock is shown in table 10.7.)
Rev. 7.00 Mar 10, 2005 page 352 of 652
REJ09B0042-0700
5 MHz
N Error n
— — —
— — 3
— — —
— — 2
— — 2
— — 2
249 0 2
124 0 0
49 0 0
24 0 0
— — 0
4 0 0
— — 0
— — 0
– 1
2n
• B)
φ φ φ φ
8 MHz
N Error n
— — 0
124 0 2
— — 0
249 0 0
124 0 0
49 0 0
24 0 0
199 0 0
79 0 0
39 0 0
19 0 0
7 0 0
3 0 0
1 0 —
10 MHz
N Error
12499 0
624 0
8332 0
4999 0
2499 0
999 0
499 0
249 0
99 0
49 0
24 0
9 0
4 0
— —