HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 531

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

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
smaller error is specified.
Table 13.6 Examples of BRR Settings for Bit Rate B (bit/s) (When n = 0)
Table 13.7 Maximum Bit Rate at Various Frequencies (Smart Card Interface Mode)
The bit rate error is given by the following formula:
bit/s
9600
7.1424
10.00
10.7136
13.00
14.2848
16.00
18.00
20.00
(MHz)
N Error N Error N Error N Error N Error N Error N Error N Error
0
N =
Error (%) = (
7.1424
0.00
1488
1
10.00
2
30
1488
2n–1
Maximum Bit Rate (bit/s)
9600
13441
14400
17473
19200
21505
24194
26882
B
1
2
10.7136
2n–1
25
10
B (N + 1)
6
– 1
1
13.00
8.99
(MHz)
10
1
14.2848
6
Rev.3.00 Mar. 26, 2007 Page 489 of 772
– 1)
0.00
N
0
0
0
0
0
0
0
0
100
Section 13 Smart Card Interface
1
16.00
12.01 2
N
18.00
REJ09B0355-0300
n
0
0
0
0
0
0
0
0
15.99 2
255, and the
20.00
6.60