DSPIC33EP128GS708 datasheet(311/484 Pages) MICROCHIP

311 / 484 page

 2016-2018 Microchip Technology Inc.

DS70005258C-page 311

dsPIC33EPXXXGS70X/80X FAMILY

23.0 CONTROLLER AREA

NETWORK (CAN) MODULE

(dsPIC33EPXXXGS80X

DEVICES ONLY)

23.1

Overview

The Controller Area Network (CAN) module is a serial

interface, useful for communicating with other CAN

modules or microcontroller devices. This interface/

protocol was designed to allow communications within

noisy

environments.

The

dsPIC33EPXXXGS80X

devices contain two CAN modules.

The CAN module is a communication controller, imple-

menting the CAN 2.0 A/B protocol, as defined in the

BOSCH CAN specification. The module supports

CAN 1.2, CAN 2.0A, CAN 2.0B Passive and CAN 2.0B

Active versions of the protocol. The module implemen-

tation is a full CAN system. The CAN specification is

not covered within this data sheet. The reader can refer

to the BOSCH CAN specification for further details.

The CAN module features are as follows:

• Implementation of the CAN Protocol, CAN 1.2,

CAN2.0A and CAN2.0B

• Standard and Extended Data Frames

• 0-8 Bytes of Data Length

• Programmable Bit Rate, up to 1 Mbit/sec

• Automatic Response to Remote Transmission

Requests

• Up to Eight Transmit Buffers with Application

Specified Prioritization and Abort Capability (each

buffer can contain up to 8 bytes of data)

• Up to 32 Receive Buffers (each buffer can contain

up to 8 bytes of data)

• Up to 16 Full (Standard/Extended Identifier)

Acceptance Filters

• Three Full Acceptance Filter Masks

• DeviceNet™ Addressing Support

• Programmable Wake-up Functionality with

Integrated Low-Pass Filter

• Programmable Loopback mode supports

Self-Test Operation

• Signaling via Interrupt Capabilities for All CAN

Receiver and Transmitter Error States

• Programmable Clock Source

• Programmable Link to Input Capture 2 (IC2)

module for Timestamping and Network

Synchronization

• Low-Power Sleep and Idle modes

The CAN bus module consists of a protocol engine and

message buffering/control. The CAN protocol engine

handles all functions for receiving and transmitting

messages on the CAN bus. Messages are transmitted

by first loading the appropriate data registers. Status

and errors can be checked by reading the appropriate

registers. Any message detected on the CAN bus is

checked for errors and then matched against filters to

see if it should be received and stored in one of the

receive registers.

Note 1: This data sheet summarizes the features

of the dsPIC33EPXXXGS70X/80X family

of devices. It is not intended to be a

comprehensive reference source. To com-

plement the information in this data sheet,

refer to “Enhanced Controller Area

Network (ECAN™)” (DS70353) in the

“dsPIC33/PIC24 Family Reference Man-

ual”, which is available from the Microchip

website (www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

DSPIC33EP128GS708 Datasheet(PDF) 311 Page - Microchip Technology

DSPIC33EP128GS708 Datasheet(HTML) 311 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL