MCP2510-EP Microchip Technology, MCP2510-EP Datasheet - Page 43

• Manufacturer Part Number: MCP2510-EP
• Description: Stand-Alone CAN Controller with SPI Interface
• Manufacturer: Microchip Technology

REGISTER 6-3: EFLG - Error Flag Register (ADDRESS: 2Dh)
1999 Microchip Technology Inc.
RX1OVR RX0OVR
bit 7:
bit 6:
bit 5:
bit 4:
bit 3:
bit 2:
bit 1:
bit 0:
bit 7
R/W-0
RX1OVR: Receive Buffer 1 Overflow Flag
- Set when a valid message is received for RXB1 and CANINTF.RX1IF = 1
- Must be reset by MCU
RX0OVR: Receive Buffer 0 Overflow Flag
- Set when a valid message is received for RXB0 and CANINTF.RX0IF = 1
- Must be reset by MCU
TXBO: Bus-Off Error Flag
- Bit set when TEC reaches 255
- Reset after a successful bus recovery sequence
TXEP: Transmit Error-Passive Flag
- Set when TEC is equal to or greater than 128
- Reset when TEC is less than 128
RXEP: Receive Error-Passive Flag
- Set when REC is equal to or greater than 128
- Reset when REC is less than 128
TXWAR: Transmit Error Warning Flag
- Set when TEC is equal to or greater than 96
- Reset when TEC is less than 96
RXWAR: Receive Error Warning Flag
- Set when REC is equal to or greater than 96
- Reset when REC is less than 96
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
R/W-0
TXBO
R-0
TXEP
R-0
RXEP
R-0
Preliminary
TXWAR RXWAR EWARN
R-0
R-0
R-0
bit 0
R = Readable bit
W = Writable bit
C = Bit can be cleared by
U = Unimplemented -
- n = Value at POR reset
MCU but not set
reads as ‘0’
MCP2510
DS21291C-page 43