Section 13 Controller Area Network (HCAN)
Rev. 3.00 Mar. 14, 2006 Page 456 of 804
REJ09B0104-0300
13.3.3
Bit Configuration Register (BCR)
BCR sets HCAN bit timing parameters and the baud rate. For details on parameters, refer to
section 13.4.2, Initialization after Hardware Reset.
15
BCR7
0
R/W
14
BCR6
0
R/W
13
BCR5
0
R/W
12
BCR4
0
R/W
11
BCR3
0
R/W
8
BCR0
0
R/W
10
BCR2
0
R/W
9
BCR1
0
R/W
Bit
Bit Name
Initial Value
R/W
7
BCR15
0
R/W
6
BCR14
0
R/W
5
BCR13
0
R/W
4
BCR12
0
R/W
3
BCR11
0
R/W
0
BCR8
0
R/W
2
BCR10
0
R/W
1
BCR9
0
R/W
Bit
Bit Name
Initial Value
R/W
Bit Bit
Name
Initial
Value R/W
Description
15
14
BCR7
BCR6
0
0
R/W
R/W
Re-Synchronization Jump Width (SJW)
Set the maximum bit synchronization width.
00: 1 time quantum
01: 2 time quanta
10: 3 time quanta
11: 4 time quanta
13
12
11
10
9
8
BCR5
BCR4
BCR3
BCR2
BCR1
BCR0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
Baud Rate Prescaler (BRP)
Set the length of time quanta.
000000: 2
×
system clock
000001: 4
×
system clock
000010: 6
×
system clock
:
111111: 128
×
system clock
7
BCR15
0
R/W
Bit Sample Point (BSP)
Sets the point at which data is sampled.
0: Bit sampling at one point (end of time segment
1 (TSEG1))
1: Bit sampling at three points (end of TSEG1 and
preceding and following time quanta)
electronic components distributor
Содержание H8SX series
Страница 2: ...Rev 3 00 Mar 14 2006 Page ii of xxxviii Downloaded from Elcodis com electronic components distributor...
Страница 22: ...Rev 3 00 Mar 14 2006 Page xxii of xxxviii Downloaded from Elcodis com electronic components distributor...
Страница 32: ...Rev 3 00 Mar 14 2006 Page xxxii of xxxviii Downloaded from Elcodis com electronic components distributor...
Страница 38: ...Rev 3 00 Mar 14 2006 Page xxxviii of xxxviii Downloaded from Elcodis com electronic components distributor...
Страница 845: ...Downloaded from Elcodis com electronic components distributor...
Страница 846: ...H8SX 1520 Group Hardware Manual Downloaded from Elcodis com electronic components distributor...