Datasheet

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27.5.4 Message RAM Representation in Direct Access Mode .................................................. 1373
27.5.5 ECC RAM ...................................................................................................... 1374
27.6 Message Interface Register Sets ..................................................................................... 1375
27.6.1 Message Interface Register Sets 1 and 2 ................................................................. 1375
27.6.2 Using Message Interface Register Sets 1 and 2.......................................................... 1376
27.6.3 Message Interface Register 3 ............................................................................... 1377
27.7 Message Object Configurations ....................................................................................... 1378
27.7.1 Configuration of a Transmit Object for Data Frames ..................................................... 1378
27.7.2 Configuration of a Transmit Object for Remote Frames ................................................. 1378
27.7.3 Configuration of a Single Receive Object for Data Frames ............................................. 1378
27.7.4 Configuration of a Single Receive Object for Remote Frames.......................................... 1379
27.7.5 Configuration of a FIFO Buffer .............................................................................. 1379
27.7.6 Reconfiguration of Message Objects for the Reception of Frames..................................... 1379
27.7.7 Reconfiguration of Message Objects for the Reception of Frames..................................... 1379
27.8 Message Handling ...................................................................................................... 1380
27.8.1 Message Handler Overview ................................................................................. 1380
27.8.2 Receive/Transmit Priority..................................................................................... 1380
27.8.3 Transmission of Messages in Event Driven CAN Communication ..................................... 1381
27.8.4 Updating a Transmit Object.................................................................................. 1381
27.8.5 Changing a Transmit Object ................................................................................. 1381
27.8.6 Acceptance Filtering of Received Messages .............................................................. 1382
27.8.7 Reception of Data Frames ................................................................................... 1382
27.8.8 Reception of Remote Frames .............................................................................. 1382
27.8.9 Reading Received Messages ............................................................................... 1382
27.8.10 Requesting New Data for a Receive Object............................................................. 1383
27.8.11 Storing Received Messages in FIFO Buffers ............................................................ 1383
27.8.12 Reading from a FIFO Buffer............................................................................... 1383
27.9 CAN Message Transfer ................................................................................................ 1385
27.9.1 Automatic Retransmission ................................................................................... 1385
27.9.2 Auto-Bus-On ................................................................................................... 1386
27.10 Interrupt Functionality .................................................................................................. 1386
27.10.1 Message Object Interrupts ................................................................................. 1386
27.10.2 Status Change Interrupts ................................................................................... 1387
27.10.3 Error Interrupts ............................................................................................... 1387
27.11 Global Power Down Mode ............................................................................................. 1388
27.11.1 Entering Global Power Down Mode....................................................................... 1388
27.11.2 Wakeup From Global Power Down Mode................................................................ 1388
27.12 Local Power Down Mode .............................................................................................. 1389
27.12.1 Entering Local Power Down Mode ........................................................................ 1389
27.12.2 Wakeup From Local Power Down......................................................................... 1389
27.13 GIO Support ............................................................................................................. 1389
27.14 Test Modes .............................................................................................................. 1391
27.14.1 Silent Mode................................................................................................... 1391
27.14.2 Loop Back Mode............................................................................................. 1392
27.14.3 External Loop Back Mode .................................................................................. 1393
27.14.4 Loop Back Combined with Silent Mode................................................................... 1394
27.14.5 Software Control of CAN_TX Pin.......................................................................... 1394
27.15 SECDED Mechanism................................................................................................... 1395
27.15.1 Behavior on Single Bit Error................................................................................ 1395
27.15.2 Behavior on Double Bit Error............................................................................... 1395
27.15.3 SECDED Testing ............................................................................................ 1395
27.16 Debug/Suspend Mode.................................................................................................. 1396
27.17 DCAN Control Registers ............................................................................................... 1396
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Contents SPNU563–May 2014
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