MCP25025-E/SL Microchip Technology, MCP25025-E/SL Datasheet - Page 17

• Manufacturer Part Number: MCP25025-E/SL
• Description: CAN I/O Expander Family, -40C to +125C, 14-SOIC 150mil, TUBE
• Manufacturer: Microchip Technology

REGISTER 2-18:
© 2007 Microchip Technology Inc.
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
EFLG - ERROR FLAG REGISTER
ESCF: Error State Change (for sending Error state message)
1 = An error state change occurred
0 = No error state change
RBO: Receive Buffer Overflow
1 = Overflow occurred
0 = No overflow occurred
TXBO: Transmitter in Bus Off Error State bit
1 = TEC reaches 256
0 = Indicates a successful bus recovery sequence
TXEP: Transmitter in Error Passive State bit
1 = TEC is equal to or greater than 128
0 = TEC is less than 128
RXEP: Receiver in Error Passive State bit
1 = REC is equal to or greater than 128
0 = REC is less than 128
TXWAR: Transmitter in Error Warning State bit
1 = TEC is equal to or greater than 96
0 = TEC is less than 96
RXWAR: Receiver in Error Warning State bit
1 = REC is equal to or greater than 96
0 = REC is less than 96
EWARN; Either the Receive Error counter or Transmit error counter has reached or exceeded
96 errors
1 = TEC or REC is equal to or greater than 96 (TXWAR or RXWAR = 1)
0 = Both REC and TEC are less than 96
bit 7
Legend:
R = Readable bit
- n = Value at POR
ESCF
R-0
RBO
R-0
TXBO
R-0
W = Writable bit
‘1’ = Bit is set
TXEP
R-0
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
RXEP
R-0
MCP2502X/5X
TXWAR
R-0
x = Bit is unknown
RXWAR
R-0
DS21664D-page 17
EWARN
R-0
bit 0