h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 705

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

Table 16-3 BCR Register Value Setting Ranges
b. Value Setting Ranges
The following formula is used to calculate the baud rate.
Example: With a 1 Mb/s baud rate and a 20 MHz input clock:
Name
Time segment 1
Time segment 2
Baud rate prescaler
Sample point
Synchronization jump width
The minimum value of SJW is stipulated in the CAN specifications.
The minimum value of TSEG1 is stipulated in the CAN specifications.
The minimum value of TSEG2 is stipulated in the CAN specifications.
Bit rate =
Note: f
1 Mb/s =
3
TSEG1 > TSEG2
TSEG2
[b/s]
SJW 0
The BCR value are used for BRP, TSEG1, and TSEG2.
CLK
2 × (0 + 1) × (3 + 4 + 3)
SJW
2 × (BRP + 1) × (3 + TSEG1 + TSEG2)
=
(system clock)
20 MHz
Abbreviation
TSEG1
TSEG2
BRP
SAM
SJW
f
CLK
Bits
4
3
6
1
2
Section 16 Controller Area Network (HCAN)
Rev. 6.00 Feb 22, 2005 page 645 of 1484
Initial
Value
0
0
0
0
0
Min.
Value
3
1
0
0
1
REJ09B0103-0600
Max.
Value
15
7
63
1
3