PAC7202MPV70 datasheet(27/976 Pages) FREESCALE

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MAC7200 Microcontroller Family Reference Manual, Rev. 2

Freescale Semiconductor

xxvii

28.2.4.2

Freeze Mode: ...........................................................................................................508

28.2.4.3

Listen-Only Mode:...................................................................................................508

28.2.4.4

Loop-Back Mode: ....................................................................................................508

28.2.4.5

Module Disable Mode: ............................................................................................508

28.2.4.6

Doze Mode: .............................................................................................................509

28.2.4.7

Stop Mode:...............................................................................................................509

28.2.5

External Signal Descriptions .......................................................................................509

28.2.5.1

CAN Rx ...................................................................................................................509

28.2.5.2

CAN Tx ...................................................................................................................509

28.2.6

Memory Map and Register Definition.........................................................................509

28.2.6.1

Memory Map ...........................................................................................................510

28.2.6.2

Message Buffer Structure ........................................................................................511

28.2.6.3

28.2.6.3.1

Module Configuration Register (MCR) ..............................................................514

28.2.6.3.2

Control Register (CTRL).....................................................................................517

28.2.6.3.3

Free Running Timer (TIMER).............................................................................520

28.2.6.3.4

Rx Global Mask (RXGMASK) ...........................................................................521

28.2.6.3.5

Rx 14 Mask (RX14MASK) .................................................................................522

28.2.6.3.6

Rx 15 Mask (RX15MASK) .................................................................................522

28.2.6.3.7

Error Counter Register (ECR) .............................................................................522

28.2.6.3.8

Error and Status Register (ESR) ..........................................................................524

28.2.6.3.9

Interrupt Masks 1 Register (IMASK1) ................................................................526

28.2.6.3.10

Interrupt Flags 1 Register (IFLAG1)...................................................................527

28.2.6.3.11

Rx Individual Mask Registers (RXIMR0–RXIMR63) .......................................527

28.2.7

Functional Description.................................................................................................528

28.2.7.1

Overview..................................................................................................................528

28.2.7.2

Transmit Process......................................................................................................529

28.2.7.3

Arbitration Process ..................................................................................................529

28.2.7.4

Receive Process .......................................................................................................530

28.2.7.5

Matching Process.....................................................................................................531

28.2.7.6

Data Coherence........................................................................................................532

28.2.7.6.1

Message Buffer Deactivation ..............................................................................532

28.2.7.6.2

Message Buffer Lock Mechanism .......................................................................533

28.2.7.7

CAN Protocol Related Features...............................................................................534

28.2.7.7.1

Remote Frames ....................................................................................................534

28.2.7.7.2

Overload Frames..................................................................................................534

28.2.7.7.3

Time Stamp..........................................................................................................534

28.2.7.7.4

Protocol Timing ...................................................................................................534

28.2.7.7.5

Arbitration and Matching Timing........................................................................537

28.2.7.8

Modes of Operation Details.....................................................................................538

28.2.7.8.1

Freeze Mode ........................................................................................................538

28.2.7.8.2

Module Disable Mode .........................................................................................538

28.2.7.8.3

Doze Mode ..........................................................................................................539

28.2.7.8.4

Stop Mode............................................................................................................540

28.2.7.9

Interrupts..................................................................................................................541

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