Table 13.3 Brr Settings For Various Bit Rates (Asynchronous Mode) (3); Table 13.4 Maximum Bit Rate For Each Frequency (Asynchronous Mode) - Hitachi H8S/2215 Series Hardware Manual

Table 13.3 BRR Settings for Various Bit Rates (Asynchronous Mode) (3)

Operating Frequency ø (MHz)
14
Bit Rate
(bit/s) n
110 2
150 2
300 2
600 1
1200 1
2400 0
4800 0
9600 0
19200 0
31250 0
38400 —
Note: Table 13.3 shows bit rates when the ABCS bit in SEMR0 is cleared to 0.
When the ABCS bit in SEMR0 is set to 1, the bit rates are twice those shown in Table 13.3.
In this LSI, operating frequency ø must be 13 MHz or greater.

Table 13.4 Maximum Bit Rate for Each Frequency (Asynchronous Mode)

Maximum Bit Rate
(kbps)
ABCS=0
ø (MHz)
2 62.5
2.097152 65.536
2.4576 76.8
3 93.75
3.6864 115.2
4 125.0
4.9152 153.6
5 156.25
6 187.5
6.144 192.0
Rev. 3.0, 10/02, page 378 of 686
14.7456
Error
N (%) n
248 –0.17 3
181 0.16 2
90 0.16 2
181 0.16 1
90 0.16 1
181 0.16 0
90 0.16 0
45 –0.93 0
22 –0.93 0
13 0.00 0
— — 0
ABCS=1
n
125.0 0
131.072 0
153.6 0
187.5 0
230.4 0
250.0 0
307.2 0
312.5 0
375.0 0
384.0 0
16
Error
N (%) n
64 0.70 3
191 0.00 2
95 0.00 2
191 0.00 1
95 0.00 1
191 0.00 0
95 0.00 0
47 0.00 0
23 0.00 0
14 –1.70 0
11 0.00 0
Maximum Bit Rate
(kbps)
ABCS=0
N ø (MHz)
0 7.3728 230.4
0 8 250.0
0 9.8304 307.2
0 10 312.5
0 12 375.0
0 12.288 384.0
0 14 437.5
0 14.7456 460.8
0 16 500.0
0 — —
Error
N (%)
70 0.03
207 0.16
103 0.16
207 0.16
103 0.16
207 0.16
103 0.16
51 0.16
25 0.16
15 0.00
12 0.16
ABCS=1 n
460.8 0
500.0 0
614.4 0
625.0 0
750.0 0
768.0 0
875.0 0
921.0 0
1000.0 0
— —
N
0
0
0
0
0
0
0
0
0
—