Examples Of Brr Settings In Synchronous Mode - Hitachi H8/500 Series Hardware Manual

Table 14-4 Examples of BRR Settings in Synchronous Mode
Bit 2
Rate n
100 —
250 1
500 1
1K 0
2.5M 0
5K 0
10K 0
25K 0
50K 0
100K —
250K 0
500K
1M
2.5M
Notes:
Blank: No setting is available.
—: A setting is available, but the bit rate is inaccurate.
B = OSC/[8 × 2
B : Bit rate
BRR value (0 ≤ N ≤ 255)
N :
OSC : Crystal oscillator frequency in MHz
n : Internal clock source (0, 1, 2, or 3)
The meaning of n is given by the table below:
n CKS1
0 0
1 0
2 1
3 1
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XTAL Frequency (MHz)
4
N n N
— — —
249 2 124
124 1 249
249 1 124
99 0 199
49 0 99
24 0 49
9 0 19
4 0 9
— 0 4
0 0 1
0 0
× (N + 1)]
2n
CKS0 Clock
0 ø
1 ø/4
0 ø/16
1 ø/64
8 10
n N n
— — —
2 249 —
2 124 —
1 249 —
1 99 1
0 199 0
0 99 0
0 39 0
0 19 0
0 9 —
0 3 0
0 1 —
0 0 —
258
16
N n N
— — —
— 3 124
— 2 249
— 2 124
124 1 199
249 1 99
124 0 199
49 0 79
24 0 39
— 0 19
4 0 7
— 0 3
— 0 1
20
n N
— —
— —
— —
— —
1 249
1 124
0 249
0 99
0 49
0 24
0 9
0 4
— —
0 0