HD6412350 Hitachi, HD6412350 Datasheet - Page 628

• Manufacturer Part Number: HD6412350
• Description: (HD6412350 / HD6432351) 16-BIT MICROCONTROLLER
• Manufacturer: Hitachi

The method of calculating the value to be set in the bit rate register (BRR) from the operating
frequency and bit rate, on the other hand, is shown below. N is an integer, 0 N 255, and the
smaller error is specified.
N =
Table 14-6 Examples of BRR Settings for Bit Rate B (bit/s) (When n = 0)
bit/s
9600
Table 14-7 Maximum Bit Rate at Various Frequencies (Smart Card Interface Mode)
ø (MHz)
7.1424
10.00
10.7136
13.00
14.2848
16.00
18.00
20.00
The bit rate error is given by the following formula:
Error (%) = (
608
1488
N Error N Error N Error N Error N Error N Error N Error N Error
0
7.1424
0.00
ø
2
2n–1
1488
1
B
10.00
30
Maximum Bit Rate (bit/s)
9600
13441
14400
17473
19200
21505
24194
26882
10
2
2n–1
6
– 1
ø
1
10.7136
B (N + 1)
25
1
13.00
8.99
ø (MHz)
10
1
6
14.2848
– 1)
0.00
N
0
0
0
0
0
0
0
0
100
1
16.00
12.01 2
18.00
n
0
0
0
0
0
0
0
0
15.99 2
20.00
6.60