Table of Contents
Advertisement
Guangzhou ZHIYUAN Electronics Co., Ltd.
C
h
a
p
t
e
r
6
:
C
h
a
p
t
e
r
6
:
F
r
a
m
e
F
o
r
m
F
r
a
m
e
F
o
r
m
CAN2.0B Standard Frame
The CAN standard frame contains 11 bytes, which is consisted of information and
data. First 3 bytes are information.
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
Byte 9
Byte 10
Byte 11
Byte 1 is the frame information. Bit 7 (FF) indicates the frame format and it is 0 for
standard frame. Bit 6 (RTR) indicates the frame type, and it is 0 for data frame, 1 for
remote frame. DLC indicates the actual data length of data frame.
Byte 2 and 3 are message identifier. The higher 11 bits are significant bits.
Byte 4~11 are the actual data of data frame. They are invalid when it is a remote
frame.
CAN2.0B Extended Frame
The CAN extended frame contains 13 bytes, which is consisted of information and
data. First 5 bytes are information.
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
Byte 9
Byte 10
User Manual
Date: 2017/10/09
C
A
p
p
e
n
d
i
x
A
p
p
e
n
d
i
x
a
t
a
t
7
6
5
FF
RTR
X
(Message identifier) ID.10 – ID.3
ID.2 – ID.0
7
6
5
FF
RTR
X
(Message identifier) ID.28 – ID.21
ID.4 – ID.0
High performance CAN card for PCIe interface
A
-
A
-
C
A
N
2
.
0
B
C
A
N
2
.
0
B
4
3
2
X
DLC (data length)
X
X
X
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
Data 8
4
3
2
X
DLC (data length)
ID.20 – ID.13
ID.12 – ID.5
X
Data 1
Data 2
Data 3
Data 4
Data 5
©2017 Guangzhou ZHIYUAN Electronics
17
PCIe-9140I User Manual
P
r
o
t
o
c
o
l
P
r
o
t
o
c
o
l
1
0
X
X
1
0
X
X
V1.00
Advertisement
Table of Contents
