LM3S2939 Datasheet, PDF (7/749 Pages) Texas Instruments – Stellaris® LM3S2939 Microcontroller

Stellaris^® LM3S2939 Microcontroller
13 Synchronous Serial Interface (SSI) .................................................................... 474
13.1 Block Diagram ............................................................................................................ 474
13.2 Signal Description ....................................................................................................... 474
13.3 Functional Description ................................................................................................. 475
13.3.1 Bit Rate Generation ..................................................................................................... 475
13.3.2 FIFO Operation ........................................................................................................... 476
13.3.3 Interrupts .................................................................................................................... 476
13.3.4 Frame Formats ........................................................................................................... 476
13.4 Initialization and Configuration ..................................................................................... 484
13.5 Register Map .............................................................................................................. 485
13.6 Register Descriptions .................................................................................................. 486
14 Inter-Integrated Circuit (I²C) Interface ................................................................ 512
14.1 Block Diagram ............................................................................................................ 513
14.2 Signal Description ....................................................................................................... 513
14.3 Functional Description ................................................................................................. 513
14.3.1 I²C Bus Functional Overview ........................................................................................ 514
14.3.2 Available Speed Modes ............................................................................................... 516
14.3.3 Interrupts .................................................................................................................... 517
14.3.4 Loopback Operation .................................................................................................... 517
14.3.5 Command Sequence Flow Charts ................................................................................ 517
14.4 Initialization and Configuration ..................................................................................... 525
14.5 Register Map .............................................................................................................. 526
14.6 Register Descriptions (I²C Master) ............................................................................... 527
14.7 Register Descriptions (I²C Slave) ................................................................................. 540
15 Controller Area Network (CAN) Module ............................................................. 549
15.1 Block Diagram ............................................................................................................ 550
15.2 Signal Description ....................................................................................................... 550
15.3 Functional Description ................................................................................................. 551
15.3.1 Initialization ................................................................................................................. 552
15.3.2 Operation ................................................................................................................... 552
15.3.3 Transmitting Message Objects ..................................................................................... 553
15.3.4 Configuring a Transmit Message Object ........................................................................ 553
15.3.5 Updating a Transmit Message Object ........................................................................... 555
15.3.6 Accepting Received Message Objects .......................................................................... 555
15.3.7 Receiving a Data Frame .............................................................................................. 555
15.3.8 Receiving a Remote Frame .......................................................................................... 556
15.3.9 Receive/Transmit Priority ............................................................................................. 556
15.3.10 Configuring a Receive Message Object ........................................................................ 557
15.3.11 Handling of Received Message Objects ........................................................................ 558
15.3.12 Handling of Interrupts .................................................................................................. 561
15.3.13 Test Mode ................................................................................................................... 561
15.3.14 Bit Timing Configuration Error Considerations ............................................................... 563
15.3.15 Bit Time and Bit Rate ................................................................................................... 563
15.3.16 Calculating the Bit Timing Parameters .......................................................................... 565
15.4 Register Map .............................................................................................................. 568
15.5 CAN Register Descriptions .......................................................................................... 570
June 18, 2012
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