HD6433935 Hitachi, HD6433935 Datasheet - Page 284

• Manufacturer Part Number: HD6433935
• Description: 8-Bit MICROCONTROLLER
• Manufacturer: Hitachi

Table 10-6 Examples of BRR Settings for Various Bit Rates (Asynchronous Mode) (2)
Bit Rate
(bit/s)
110
150
200
250
300
600
1200
2400
4800
9600
19200
31250
38400
Notes: 1. The setting should be made so that the error is not more than 1%.
272
2. The value set in BRR is given by the following equation:
3. The error in table 10-6 is the value obtained from the following equation, rounded to two
Error (%) =
OSC
10 MHz
n
2
2
2
2
—
—
0
0
—
—
—
0
—
where
B: Bit rate (bit/s)
N: Baud rate generator BRR setting (0
OSC: Value of ø
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.)
N=
decimal places.
N
88
64
48
38
—
—
129
64
—
—
—
4
—
(64
B (rate obtained from n, N, OSC) — R (bit rate in left-hand column in table 10-6.)
OSC
Error
(%)
–0.25 2
0.16
–0.35 2
0.16
—
—
0.16
0.16
—
—
—
0
—
2
2n
16 MHz
n
2
2
2
2
0
0
0
0
0
0
—
B)
OSC
— 1
(Hz)
N
141
103
77
62
51
25
207
103
51
25
12
7
—
R (bit rate in left-hand column in table 10-6.)
Error
(%)
–0.02
0.16
0.16
–0.79
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0
—
N
255)
100