PIC18LC658-I/CL View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18LC658-I/CL

High-Performance Microcontrollers with CAN Module

Microchip Technology 

PIC18CXX8

REGISTER 17-9:

TXBnDm – TRANSMIT BUFFER n DATA FIELD BYTE m REGISTER

R/W-x R/W-x

R/W-x

R/W-x

R/W-x R/W-x R/W-x R/W-x

TXBnDm7 TXBnDm6 TXBnDm5 TXBnDm4 TXBnDm3 TXBnDm2 TXBnDm1 TXBnDm0

bit 7

bit 0

bit 1-0

TXBnDm7:TXBnDm0: Transmit Buffer n Data Field Byte m bits (where 0≤n<3 and 0<m<8)

Each Transmit Buffer has an array of registers. For example, Transmit buffer 0 has 7 registers:

TXB0D0 to TXB0D7.

Legend:

R = Readable bit

- n = Value at POR

W = Writable bit

’1’ = Bit is set

U = Unimplemented bit, read as ‘0’

’0’ = Bit is cleared x = Bit is unknown

REGISTER 17-10: TXBnDLC – TRANSMIT BUFFER n DATA LENGTH CODE REGISTER

U-0

R/W-x

U-0

U-0

R/W-x R/W-x R/W-x

—

TXRTR

—

—

DLC3 DLC2 DLC1

bit 7

R/W-x

DLC0

bit 0

bit 7

bit 6

bit 5-4

bit 3-0

Unimplemented: Read as ’0’

TXRTR: Transmission Frame Remote Transmission Request bit

1 = Transmitted message will have TXRTR bit set

0 = Transmitted message will have TXRTR bit cleared.

Unimplemented: Read as ’0’

DLC3:DLC0: Data Length Code bits

1111 = Reserved

1110 = Reserved

1101 = Reserved

1100 = Reserved

1011 = Reserved

1010 = Reserved

1001 = Reserved

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

Legend:

R = Readable bit

- n = Value at POR

W = Writable bit

’1’ = Bit is set

U = Unimplemented bit, read as ‘0’

’0’ = Bit is cleared x = Bit is unknown

DS30475A-page 192

Advanced Information

 2000 Microchip Technology Inc.

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