參數(shù)資料
型號: MSM9225
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: CAN (Controller Area Network) Controller
中文描述: CAN(控制器局域網(wǎng))控制器
文件頁數(shù): 49/74頁
文件大?。?/td> 488K
代理商: MSM9225
Semiconductor
MSM9225
53/73
2. Error frame
When an error occurs, the node that detected the error will output this frame.
While a passive error flag is being output, if another node outputs "dominant", the passive error
flag will not end until 6 consecutive bits at the same level are detected.
If 6 consecutive bits are "recessive" but the 7th bit is "dominant", the error flag will end after the
bit level changes to "recessive".
R
D
1
2
3
(5)
Error frame
Interframe space of overload frame
Error delimiter
Error flag
Error bit
(4)
Field Definitions
No.
Error flag
Error delimiter
Error bit
Interframe space/
overload frame
Name
No. of bits
Difinition
Error active node: Outputs 6 consecutive "dominant" bits.
Error passive node: Outputs 6 consecutive "recessive bits".
The node that has received an "error flag" detects a bit stuff error and
outputs an "error flag" again.
Outputs 8 consecutive "receive" bits.
If the 8th bit is observed to be "dominant", an overload frame is transmit
biginning at the next bit.
Output following the bit in which an error occurred.
(In the case of a CRC error, this field is output following the Ack delimiter.)
"Interframe space" or "overload frame" continues.
1
2
3
4
5
6
0 to 6
8
3/10
20 Max
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