参数资料
型号: MSM9225
厂商: OKI SEMICONDUCTOR CO., LTD.
英文描述: CAN (Controller Area Network) Controller
中文描述: CAN(控制器局域网)控制器
文件页数: 74/74页
文件大小: 488K
代理商: MSM9225
Semiconductor
MSM9225
9/73
2. Identifier 0 (X1hex)
This register sets the data length code and a part of the identifier.
Set this register for each message.
The bit configuration is as follows:
(1) Format setting: IDFM
The microcontroller sets the message format.
At reset, the IDFM bit is undefined.
IDFM
Operation
0
Standard format (ID = 11 bits)
Extended format (ID = 29 bits)
I
(2) Data length code: DLC3 to DLC0
This is control field data to set the number of bytes of a data field. 0 to 8 can be set.
At reset, these bits are undefined.
(3) Identifier: IDB28 to IDB26
These bits set the identifier field.
For standard format (IDFM = 0), the higher 3 bits of the 11 bits are set.
For extended format (IDFM = 1), the higher 3 bits (ID28 to ID26) of the 29 bits (ID28 to
ID0) are set.
At reset, these bits are undefined.
76543210
Address MSB
1h
LSB
IDB26 :
IDB27 :
IDB28 :
DLC0 :
DLC1 :
DLC2 :
DLC3 :
IDFM : Format setting
Identifier
Data length code
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