PIC18F4580-I/P Microchip Technology Inc., PIC18F4580-I/P Datasheet - Page 207

• Manufacturer Part Number: PIC18F4580-I/P
• Description: 40 PIN, 32 KB FLASH, 1536 RAM, 36 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F4580-I/P

• A/d Inputs: 11-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 36
• Interface: CAN/I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 40-pin PDIP
• Programmable Memory: 32K Bytes
• Ram Size: 1.5K Bytes
• Speed: 40 MHz
• Timers: 1-8 bit, 3-16 bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

REGISTER 19-3:
 2004 Microchip Technology Inc.
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
bit 7
RXB0OVFL RXB1OVFL
RXB0OVFL: Receive Buffer 0 Overflow bit
1 = Receive Buffer 0 overflowed
0 = Receive Buffer 0 has not overflowed
RXB1OVFL: Receive Buffer 1 Overflow bit
1 = Receive Buffer 1 overflowed
0 = Receive Buffer 1 has not overflowed
TXBO: Transmitter Bus-Off bit
1 = Transmit Error Counter > 255
0 = Transmit Error Counter
TXBP: Transmitter Bus Passive bit
1 = Transmission Error Counter > 127
0 = Transmission Error Counter
RXBP: Receiver Bus Passive bit
1 = Receive Error Counter > 127
0 = Receive Error Counter
TXWARN: Transmitter Warning bit
1 = 127
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
Legend:
R = Readable bit
-n = Value at POR
COMSTAT: COMMUNICATION STATUS REGISTER
R/C-0
Transmit Error Counter > 95
Receive Error Counter > 95
R/C-0
W = Writable bit
‘1’ = Bit is set
TXBO
127
95
255
95
R-0
127
C = Clearable bit
‘0’ = Bit is cleared
TXBP
R-0
RXBP
R-0
U = Unimplemented bit, read as ‘0’
x = Bit is unknown
TXWARN RXWARN
R-0
PIC18FXX8
R-0
DS41159D-page 205
EWARN
R-0
bit 0