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| 型号： | MCP2510-I/ST |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 1 CHANNEL(S), 1M bps, LOCAL AREA NETWORK CONTROLLER, PDSO20 |
| 封装： | 4.40 MM, PLASTIC, TSSOP-20 |
| 文件页数： | 8/80页 |
| 文件大小： | 998K |
| 代理商： | MCP2510-I/ST |
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MCP2510
DS21291F-page 16
2007 Microchip Technology Inc.
Only messages that have not already begun to be
transmitted can be aborted. Once a message has
begun transmission, it will not be possible for the user
to reset the TXBnCTRL.TXREQ bit. After transmission
of a message has begun, if an error occurs on the bus
or if the message loses arbitration, the message will be
retransmitted regardless of a request to abort.
FIGURE 3-1:
TRANSMIT MESSAGE FLOWCHART
Start
Is
CAN Bus available
to start transmission
No
Examine TXBnCTRL.TXP <1:0> to
Are any
TXBnCTRL.TXREQ
?
bits = 1
The
message
transmission
sequence begins when the
device determines that the
TXBnCTRL.TXREQ for any of
the transmit registers has been
set.
Clear:
TXBnCTRL.ABTF
TXBnCTRL.MLOA
TXBnCTRL.TXERR
Yes
?
is
TXBnCTRL.TXREQ=0
CANCTRL.ABAT=1
Clearing the TxBnCTRL.TXREQ
bit while it is set, or setting the
CANCTRL.ABAT bit before the
message has started transmission
will abort the message.
No
Transmit Message
Was
Message Transmitted
Successfully?
No
Yes
Set TxBnCTRL.TXREQ=0
CANINTE.TXnIE=1?
Generate
Interrupt
Yes
Set
Did
a message error
occur?
Was
Arbitration lost during
transmission?
Set
TxBnCTRL.TXERR=1
Yes
No
Determine Highest Priority Message
No
?
TxBnCTRL.MLOA=1
The CANINTE.TXnIE bit
determines if an interrupt
should be generated when
a message is successfully
transmitted.
GOTO START
CANTINF.TXnIF=1
Yes
No
相关PDF资料 |
PDF描述 |
|---|---|
| MCP2510-EST | 1 CHANNEL(S), 1M bps, LOCAL AREA NETWORK CONTROLLER, PDSO20 |
| MCP2510T-I/SOG | 1 CHANNEL(S), 1M bps, LOCAL AREA NETWORK CONTROLLER, PDSO18 |
| MCP2510-ESO | 1 CHANNEL(S), 1M bps, LOCAL AREA NETWORK CONTROLLER, PDSO18 |
| MCP2510T-ESO | 1 CHANNEL(S), 1M bps, LOCAL AREA NETWORK CONTROLLER, PDSO18 |
| MCP2510T-E/SO | 1 CHANNEL(S), 1M bps, LOCAL AREA NETWORK CONTROLLER, PDSO18 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP2510I-ST | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Stand-Alone CAN Controller with SPIa?￠ Interface |
| MCP2510T-/P | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Stand-Alone CAN Controller with SPI⑩ Interface |
| MCP2510T-/SO | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Stand-Alone CAN Controller with SPI⑩ Interface |
| MCP2510T-/ST | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Stand-Alone CAN Controller with SPI⑩ Interface |
| MCP2510T-E/P | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Stand-Alone CAN Controller with SPI⑩ Interface |
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