參數(shù)資料
型號： MSM9225BGA-2K
廠商： OKI ELECTRIC INDUSTRY CO LTD
元件分類： 微控制器/微處理器
英文描述： 2 CHANNEL(S), 1M bps, LOCAL AREA NETWORK CONTROLLER, PQFP44
封裝： PLASTIC, QFP-44
文件頁數(shù)： 45/95頁
文件大?。?/td> 567K
代理商： MSM9225BGA-2K
MSM9225B User’s Manual
Contents
Contents – 1
Table of Contents
Chapter 1
Overview
1.1
Overview .....................................................................................................................................................1-1
1.2
Features .......................................................................................................................................................1-1
1.3
Block Diagram ............................................................................................................................................1-2
1.4
Configuration Example ...............................................................................................................................1-2
1.5
Pin Configuration ........................................................................................................................................1-3
1.6
Pin Descriptions ..........................................................................................................................................1-4
Chapter 2
Register Descriptions
2.1
Memory Space ............................................................................................................................................2-1
2.2
Message Memory ........................................................................................................................................2-3
2.3
Message Memory Related Register.............................................................................................................2-4
2.3.1
Message Control Register (MCR: x0hex) .............................................................................................2-4
2.3.2
Identifier 0 (IDR0: x1hex) .....................................................................................................................2-7
2.3.3
Identifier 1 (IDR1: x2hex) .....................................................................................................................2-8
2.3.4
Identifiers 2, 3, 4/Messages 0-7 (MSG0-7 in the case of standard format;
IDR2-4, TMSG0-7 in the case of extended format: x3 to xDhex) ........................................................2-8
2.4
Control Registers.......................................................................................................................................2-16
2.4.1
CAN Control Register (CANC: 0Ehex) ..............................................................................................2-17
2.4.2
CAN Interrupt Control Register (CANI: 0Fhex) .................................................................................2-19
2.4.3
Message Box Count Setting Register (NMES: 1Ehex) .......................................................................2-21
2.4.4
CAN Bus Timing Register 0 (BTR0: 1Fhex) ......................................................................................2-21
2.4.5
CAN Bus Timing Register 1 (BTR1: 2Ehex)......................................................................................2-23
2.4.6
Communication Input/Output Control Register (TIOC: 2Fhex)..........................................................2-27
2.4.7
Group Message Register (GMR0: 3Ehex, GMR1: 3Fhex)..................................................................2-30
2.4.8
Group Message Mask Register (GMSK).............................................................................................2-31
2.4.9
Standby Control Register (STBY: 8Ehex)...........................................................................................2-33
2.4.10 CAN Control Register 2 (CANC2: 8Fhex)..........................................................................................2-34
2.4.11 Communication Message Box Number Register (TMN: 9Ehex) ........................................................2-35
2.4.12 CAN Status Register (CANS: 9Fhex) .................................................................................................2-36
2.4.13 Transmit Error Counter (TEC: AEhex) ...............................................................................................2-37
2.4.14 Receive Error Counter (REC: AFhex).................................................................................................2-37
2.4.15 CAN Status Register 2 (CANS2: BEhex)............................................................................................2-38
2.4.16 Bus Off Release Counter (BOCO: BFhex)..........................................................................................2-39
Chapter 3
Operational Description
3.1
Operational Procedure.................................................................................................................................3-1
3.1.1
Initial Setting .........................................................................................................................................3-1
3.1.2
Transmit Procedure ...............................................................................................................................3-2
3.1.3
Receive Procedure .................................................................................................................................3-3
3.1.4
Message Box Rewrites during Operation ..............................................................................................3-4
3.1.5
Remote Frame Operation.......................................................................................................................3-5
3.1.5.1
Automatic Response ........................................................................................................................3-5
3.1.5.2
Manual Response .............................................................................................................................3-7
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