Datasheet

© 2007 Microchip Technology Inc. DS21801E-page 51
MCP2515
REGISTER 7-2: CANINTF – INTERRUPT FLAG
(ADDRESS: 2Ch)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
MERRF WAKIF ERRIF TX2IF TX1IF TX0IF RX1IF RX0IF
bit 7 bit 0
Legend:
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 MERRF: Message Error Interrupt Flag bit
1 = Interrupt pending (must be cleared by MCU to reset interrupt condition)
0 = No interrupt pending
bit 6 WAKIF: Wakeup Interrupt Flag bit
1 = Interrupt pending (must be cleared by MCU to reset interrupt condition)
0 = No interrupt pending
bit 5 ERRIF: Error Interrupt Flag bit (multiple sources in EFLG register)
1 = Interrupt pending (must be cleared by MCU to reset interrupt condition)
0 = No interrupt pending
bit 4 TX2IF: Transmit Buffer 2 Empty Interrupt Flag bit
1 = Interrupt pending (must be cleared by MCU to reset interrupt condition)
0 = No interrupt pending
bit 3 TX1IF: Transmit Buffer 1 Empty Interrupt Flag bit
1 = Interrupt pending (must be cleared by MCU to reset interrupt condition)
0 = No interrupt pending
bit 2 TX0IF: Transmit Buffer 0 Empty Interrupt Flag bit
1 = Interrupt pending (must be cleared by MCU to reset interrupt condition)
0 = No interrupt pending
bit 1 RX1IF: Receive Buffer 1 Full Interrupt Flag bit
1 = Interrupt pending (must be cleared by MCU to reset interrupt condition)
0 = No interrupt pending
bit 0 RX0IF: Receive Buffer 0 Full Interrupt Flag bit
1 = Interrupt pending (must be cleared by MCU to reset interrupt condition)
0 = No interrupt pending