PIC18F2480 MICROCHIP [Microchip Technology], PIC18F2480 Datasheet - Page 283

• Manufacturer Part Number: PIC18F2480
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

REGISTER 23-4:
 2004 Microchip Technology Inc.
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Mode 0
Mode 1
Mode 2
Legend:
C = Clearable bit
-n = Value at POR
bit 7
Mode 0:
RXB0OVFL: Receive Buffer 0 Overflow bit
1 = Receive Buffer 0 overflowed
0 = Receive Buffer 0 has not overflowed
Mode 1:
Unimplemented: Read as ‘0’
Mode 2:
FIFOEMPTY: FIFO Not Empty bit
1 = Receive FIFO is not empty
0 = Receive FIFO is empty
Mode 0:
RXB1OVFL: Receive Buffer 1 Overflow bit
1 = Receive Buffer 1 overflowed
0 = Receive Buffer 1 has not overflowed
Mode 1, 2:
RXBnOVFL: Receive Buffer n Overflow bit
1 = Receive Buffer n has overflowed
0 = Receive Buffer n has not overflowed
TXBO: Transmitter Bus-Off bit
1 = Transmit error counter > 255
0 = Transmit error counter
TXBP: Transmitter Bus Passive bit
1 = Transmit error counter > 127
0 = Transmit error counter
RXBP: Receiver Bus Passive bit
1 = Receive error counter > 127
0 = Receive error counter
TXWARN: Transmitter Warning bit
1 = Transmit error counter > 95
0 = Transmit error counter
RXWARN: Receiver Warning bit
1 = 127
0 = Receive error counter
EWARN: Error Warning bit
This bit is a flag of the RXWARN and TXWARN bits.
1 = The RXWARN or the TXWARN bits are set
0 = Neither the RXWARN or the TXWARN bits are set
FIFOEMPTY RXBnOVFL
COMSTAT: COMMUNICATION STATUS REGISTER
RXB0OVFL RXB1OVFL
R/C-0
R/C-0
R/C-0
—
Receive error counter > 95
RXBnOVFL
R/C-0
R/C-0
R/C-0
R = Readable bit
‘1’ = Bit is set
PIC18F2480/2580/4480/4580
127
95
Preliminary
255
127
95
TXBO
TXBO
TXB0
R-0
R-0
R-0
TXBP
TXBP
TXBP
W = Writable bit
‘0’ = Bit is cleared
R-0
R-0
R-0
RXBP
RXBP
RXBP
R-0
R-0
R-0
TXWARN RXWARN EWARN
TXWARN RXWARN EWARN
TXWARN RXWARN EWARN
U = Unimplemented bit, read as ‘0’
x = Bit is unknown
R-0
R-0
R-0
R-0
R-0
R-0
DS39637A-page 281
R-0
R-0
R-0
bit 0