h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 581

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

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.
Table 14-6 Examples of BRR Settings for Bit Rate B (bit/s) (When n = 0 and S = 372)
Note: A blank means no setting is available.
Table 14-7 Maximum Bit Rate at Various Frequencies (Smart Card Interface Mode)
The bit rate error is given by the following formula:
N =
bit/s
9600
7.1424
10.00
10.7136
13.00
14.2848
16.00
18.00
20.00
Error (%) = (
(MHz)
S 2
N
0
7.1424
2n+1
Error
0.00
(when S = 372)
S 2
B
N
1
2n+1
10.00
10
Error
30
Maximum Bit Rate (bit/s)
9600
13441
14400
17473
19200
21505
24194
26882
B (N + 1)
6
– 1
N
1
10.7136
Error
25
10
N
1
6
13.00
– 1) 100
Error
8.99
(MHz)
N
1
14.2848
Rev. 6.00 Feb 22, 2005 page 521 of 1484
Error
0.00
N
0
0
0
0
0
0
0
0
N
1
Section 14 Smart Card Interface
16.00
Error
12.01
N
2
18.00
REJ09B0103-0600
n
0
0
0
0
0
0
0
0
Error
15.99
N
2
20.00
Error
6.60