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參數(shù)資料
| 型號： | ML9620GAZ210 |
| 廠商： | OKI ELECTRIC INDUSTRY CO LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 1 CHANNEL(S), 1M bps, LOCAL AREA NETWORK CONTROLLER, PQFP44 |
| 封裝： | 0.80 MM PITCH, PLASTIC, QFP-44 |
| 文件頁數(shù)： | 14/79頁 |
| 文件大?。?/td> | 449K |
| 代理商： | ML9620GAZ210 |
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ML9620 User’s Manual
Chapter 2
Register Descriptions
2 – 4
TxOK
Transmited a Message Successfuly
0
Since this bit was reset by the MCU, no message has been successfully
transmitted. This bit is never reset by the CAN Controller.
1
Since this bit was last reset by the MCU, a message has been successfully (error
free and acknowledged by at least one other node) transmitted.
RxOK
Recived a Message Successfuly
0
Since this bit was last reset by the MCU, no message has been successfully
received. This bit is never reset by the CAN Controller.
1
Since this bit was last reset (to ‘0’) by the MCU, a message has been successfully
received (independent of the result of acceptance filtering).
EPass
Error Passive
0
The CAN Controller is error active.
1
The CAN Controller is in the error passive state as defined in the CAN
Specification.
EWarn
Warning Status
0
At least one of the error counters has reached the error-warning limit of 96.
1
Both error counters are below the error-warning limit of 96.
BOff
Busoff Counter
0
The CAN Controller is in Busoff state.
1
The CAN Controller is not Busoff.
2.2.2.1
Status Interrupts
A Status Interrupt is generated by bits BOff and EWarn (Error Interrupt) or by RxOK, TxOK, and
LEC (Status Change Interrupt) assumed that the corresponding enable bits in the CAN Control Register
are set.
A change of bit EPass or a write to RxOK, TxOK, or LEC will never generate a Status
Interrupt.
Reading the Status Register will clear the Status Interrupt value (0x80) in the CAN Interrupt 2 Register,
if it is pending.
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