MCP2515
REGISTER 6-3:
EFLG – ERROR FLAG
(ADDRESS: 2Dh)
R/W-0
RX1OVR
R/W-0
RX0OVR
R-0
TXBO
R-0
TXEP
R-0
RXEP
R-0
TXWAR
R-0
RXWAR
R-0
EWARN
bit 7
Legend:
bit 0
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
RX1OVR: Receive Buffer 1 Overflow Flag bit
- Set when a valid message is received for RXB1 and CANINTF.RX1IF = 1
- Must be reset by MCU
RX0OVR: Receive Buffer 0 Overflow Flag bit
- Set when a valid message is received for RXB0 and CANINTF.RX0IF = 1
- Must be reset by MCU
TXBO: Bus-Off Error Flag bit
- Bit set when TEC reaches 255
- Reset after a successful bus recovery sequence
TXEP: Transmit Error-Passive Flag bit
- Set when TEC is equal to or greater than 128
- Reset when TEC is less than 128
RXEP: Receive Error-Passive Flag bit
- Set when REC is equal to or greater than 128
- Reset when REC is less than 128
TXWAR: Transmit Error Warning Flag bit
- Set when TEC is equal to or greater than 96
- Reset when TEC is less than 96
RXWAR: Receive Error Warning Flag bit
- Set when REC is equal to or greater than 96
- Reset when REC is less than 96
EWARN: Error Warning Flag bit
- Set when TEC or REC is equal to or greater than 96 (TXWAR or RXWAR = 1 )
- Reset when both REC and TEC are less than 96
? 2003-2012 Microchip Technology Inc.
DS21801G-page 49
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相关代理商/技术参数
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MCP2515-E/ML 制造商:Microchip Technology Inc 功能描述:
MCP2515-E/P 功能描述:网络控制器与处理器 IC W/ SPI Inter 125dC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流(最大值):595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
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MCP2515-E/SORB4 制造商:Microchip Technology Inc 功能描述:
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MCP2515-I 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Stand-Alone CAN Controller with SPI Interface
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