HD6413008F RENESAS [Renesas Technology Corp], HD6413008F Datasheet - Page 391

• Manufacturer Part Number: HD6413008F
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
• Manufacturer: RENESAS [Renesas Technology Corp]

The BRR setting is calculated as follows:
Asynchronous mode:
Synchronous mode:
Legend:
B: Bit rate (bit/s)
N: BRR setting for baud rate generator (0 ≤ N ≤ 255)
φ: System clock frequency (MHz)
n: Baud rate generator input clock (n = 0, 1, 2, 3)
n
0
1
2
3
The bit rate error in asynchronous mode is calculated as follows:
(For the clock sources and values of n, see the following table.)
N =
N =
Error (%) =
64 × 2
8 × 2
2n−1
2n−1
φ
φ
(N + 1) × B × 64 × 2
Clock Source
φ
φ/4
φ/16
φ/64
× B
× B
× 10
× 10
φ × 10
6
6
− 1
− 1
6
2n−1
CKS1
0
0
1
1
− 1 × 100
Rev.4.00 Aug. 20, 2007 Page 347 of 638
12. Serial Communication Interface
SMR Settings
CKS0
0
1
0
1
REJ09B0395-0400