LM3S8730 Datasheet, PDF (386/551 Pages) List of Unclassifed Manufacturers – Microcontroller

Controller Area Network (CAN) Module
15.1
15.2
Block Diagram
Figure 15-1. CAN Controller Block Diagram
CAN Control
CANCTL
CANSTS
CANERR
CANBIT
CANINT
CANTST
CANBRPE
ABP
Pins
APB
Interface
CAN Interface 1
CANIF1CRQ
CANIF1CMSK
CANIF1MSK1
CANIF1MSK2
CANIF1ARB1
CANIF1ARB2
CANIF1MCTL
CANIF1DA1
CANIF1DA2
CANIF1DB1
CANIF1DB2
CAN Interface 2
CANIF2CRQ
CANIF2CMSK
CANIF2MSK1
CANIF2MSK2
CANIF2ARB1
CANIF2ARB2
CANIF2MCTL
CANIF2DA1
CANIF2DA2
CANIF2DB1
CANIF2DB2
CAN Core
CAN Tx
CAN Rx
Message Object
Registers
CANTXRQ1
CANTXRQ2
CANNWDA1
CANNWDA2
CANMSG1INT
CANMSG2INT
CANMSG1VAL
CANMSG2VAL
Message RAM
32 Message Objects
Functional Description
The Stellaris^® CAN controller conforms to the CAN protocol version 2.0 (parts A and B). Message
transfers that include data, remote, error, and overload frames with an 11-bit identifier (standard)
or a 29-bit identifier (extended) are supported. Transfer rates can be programmed up to 1 Mbps.
The CAN module consists of three major parts:
■ CAN protocol controller and message handler
■ Message memory
■ CAN register interface
386
June 22, 2010
Texas Instruments-Production Data