PIC18F2480 MICROCHIP [Microchip Technology], PIC18F2480 Datasheet - Page 294

• 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]

PIC18F2480/2580/4480/4580
REGISTER 23-19: RXBnDLC: RECEIVE BUFFER n DATA LENGTH CODE REGISTERS [0 n 1]
REGISTER 23-20: RXBnDm: RECEIVE BUFFER n DATA FIELD BYTE m REGISTERS
DS39637A-page 292
bit 7-0
bit 7
bit 6
bit 5
bit 4
bit 3-0
[0
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 7
Unimplemented: Read as ‘0’
RXRTR: Receiver Remote Transmission Request bit
1 = Remote transfer request
0 = No remote transfer request
RB1: Reserved bit 1
Reserved by CAN Spec and read as ‘0’.
RB0: Reserved bit 0
Reserved by CAN Spec and read as ‘0’.
DLC3:DLC0: Data Length Code bits
1111 = Invalid
1110 = Invalid
1101 = Invalid
1100 = Invalid
1011 = Invalid
1010 = Invalid
1001 = Invalid
1000 = Data length = 8 bytes
0111 = Data length = 7 bytes
0110 = Data length = 6 bytes
0101 = Data length = 5 bytes
0100 = Data length = 4 bytes
0011 = Data length = 3 bytes
0010 = Data length = 2 bytes
0001 = Data length = 1 bytes
0000 = Data length = 0 bytes
RXBnDm7 RXBnDm6 RXBnDm5 RXBnDm4 RXBnDm3 RXBnDm2 RXBnDm1 RXBnDm0
RXBnDm7:RXBnDm0: Receive Buffer n Data Field Byte m bits (where 0 n < 1 and 0 < m < 7)
Each receive buffer has an array of registers. For example, Receive Buffer 0 has 8 registers:
RXB0D0 to RXB0D7.
Legend:
R = Readable bit
-n = Value at POR
R-x
U-0
—
n
1, 0
RXRTR
R-x
R-x
m
7]
W = Writable bit
‘1’ = Bit is set
W = Writable bit
‘1’ = Bit is set
RB1
R-x
R-x
Preliminary
RB0
R-x
R-x
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
DLC3
R-x
R-x
DLC2
R-x
R-x
 2004 Microchip Technology Inc.
x = Bit is unknown
x = Bit is unknown
DLC1
R-x
R-x
DLC0
R-x
R-x
bit 0
bit 0