PIC18LF4682-I/ML 查看數據表（PDF） - Microchip Technology

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PIC18LF4682-I/ML

28/40/44-Pin Enhanced Flash Microcontrollers with ECAN™ Technology, 10-Bit A/D and nanoWatt Technology

Microchip Technology 

PIC18F2682/2685/4682/4685

FIGURE 23-1:

CAN BUFFERS AND PROTOCOL ENGINE BLOCK DIAGRAM

BUFFERS

16 – 4 to 1 MUXs

TXB0

Message

Queue

Control

TXB1

TXB2

Acceptance Filters

(RXF0-RXF05)

A

MODE 0

c

c

e

p

Acceptance Filters RXF15

t

(RXF06-RXF15)

MODE 1, 2

Transmit Byte Sequencer

Transmit Option

MODE 0

2 RX

Buffers

MODE 1, 2

6 TX/RX

Buffers

Identifier

M

A

Data Field B

VCC

Rcv Byte

MESSAGE

BUFFERS

PROTOCOL

ENGINE

Transmit<7:0>

Receive<8:0>

Shift<14:0>

{Transmit<5:0>, Receive<8:0>}

Comparator

CRC<14:0>

Receive

Error

Counter

Transmit

Error

Counter

REC

TEC

Err-Pas

Bus-Off

Protocol

Finite

State

Machine

Transmit

Logic

TX

Bit

Timing

Logic

RX

Clock

Generator

Configuration

Registers

DS39761B-page 274

Preliminary

© 2007 Microchip Technology Inc.

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