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MCP2510-EST датащи(PDF) 43 Page - Microchip Technology |
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MCP2510-EST датащи(HTML) 43 Page - Microchip Technology |
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43 / 76 page ![]() 2000 Microchip Technology Inc. Preliminary DS21291C-page 43 MCP2510 REGISTER 6-3: EFLG - Error Flag Register (ADDRESS: 2Dh) R/W-0 R/W-0 R-0 R-0 R-0 R-0 R-0 R-0 RX1OVR RX0OVR TXBO TXEP RXEP TXWAR RXWAR EWARN R = Readable bit W = Writable bit C = Bit can be cleared by MCU but not set U = Unimplemented - reads as ‘0’ - n = Value at POR reset bit 7 bit 0 bit 7: RX1OVR: Receive Buffer 1 Overflow Flag - Set when a valid message is received for RXB1 and CANINTF.RX1IF = 1 - Must be reset by MCU bit 6: RX0OVR: Receive Buffer 0 Overflow Flag - Set when a valid message is received for RXB0 and CANINTF.RX0IF = 1 - Must be reset by MCU bit 5: TXBO: Bus-Off Error Flag - Bit set when TEC reaches 255 - Reset after a successful bus recovery sequence bit 4: TXEP: Transmit Error-Passive Flag - Set when TEC is equal to or greater than 128 - Reset when TEC is less than 128 bit 3: RXEP: Receive Error-Passive Flag - Set when REC is equal to or greater than 128 - Reset when REC is less than 128 bit 2: TXWAR: Transmit Error Warning Flag - Set when TEC is equal to or greater than 96 - Reset when TEC is less than 96 bit 1: RXWAR: Receive Error Warning Flag - Set when REC is equal to or greater than 96 - Reset when REC is less than 96 bit 0: EWARN: Error Warning Flag - 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 |
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