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PIC18F45K80-I Datasheet, PDF (411/622 Pages) Microchip Technology – 28/40/44/64-Pin, Enhanced Flash Microcontrollers with ECAN and nanoWatt XLP Technology | |||
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PIC18F66K80 FAMILY
REGISTER 27-19: RXBnDLC: RECEIVE BUFFER ânâ DATA LENGTH CODE REGISTERS [0 ï£ n ï£ 1]
U-0
â
bit 7
R-x
R-x
RXRTR
RB1
R-x
R-x
R-x
R-x
R-x
R0
DLC3
DLC2
DLC1
DLC0
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
â1â = Bit is set
U = Unimplemented bit, read as â0â
â0â = Bit is cleared
x = Bit is unknown
bit 7
bit 6
bit 5
bit 4
bit 3-0
Unimplemented: Read as â0â
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 â0â.
RB0: Reserved bit 0
Reserved by CAN Spec and read as â0â.
DLC<3:0>: 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 byte
0000 = Data length = 0 bytes
REGISTER 27-20: RXBnDm: RECEIVE BUFFER ânâ DATA FIELD BYTE âmâ REGISTERS
[0 ï£ n ï£ 1, 0 ï£ m ï£ 7]
R-x
RXBnDm7
bit 7
R-x
RXBnDm6
R-x
RXBnDm5
R-x
R-x
RXBnDm4 RXBnDm3
R-x
RXBnDm2
R-x
RXBnDm1
R-x
RXBnDm0
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
â1â = Bit is set
U = Unimplemented bit, read as â0â
â0â = Bit is cleared
x = Bit is unknown
bit 7-0
RXBnDm<7:0>: Receive Buffer n Data Field Byte m bits (where 0 ï£ï 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.
ï£ 2010-2012 Microchip Technology Inc.
DS39977F-page 411
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