h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 517

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

The BRR setting is found from the following formulas.
Asynchronous mode:
Clocked synchronous mode:
Where B: Bit rate (bit/s)
The bit rate error in asynchronous mode is found from the following formula:
n
0
1
2
3
N =
N =
Error (%) = {
N: BRR setting for baud rate generator (0 N 255)
n: Baud rate generator input clock (n = 0 to 3)
: Operating frequency (MHz)
Clock
/4
/16
/64
(See the table below for the relation between n and the clock.)
64
8
2
2
2n–1
2n–1
CKS1
0
0
1
1
(N + 1) B 64 2
B
B
SMR Setting
CKS0
0
1
0
1
10
10
10
6
6
6
– 1
– 1
2n–1
Section 13 Serial Communication Interface (SCI)
– 1
Rev. 6.00 Feb 22, 2005 page 457 of 1484
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REJ09B0103-0600