Information

Section Number Title Page
21.3.31 TCD Beginning Minor Loop Link, Major Loop Count (Channel Linking Disabled)
(DMA_TCDn_BITER_ELINKNO)............................................................................................................467
21.4 Functional description...................................................................................................................................................468
21.4.1 eDMA basic data flow.................................................................................................................................468
21.4.2 Error reporting and handling........................................................................................................................471
21.4.3 Channel preemption.....................................................................................................................................473
21.4.4 Performance.................................................................................................................................................473
21.5 Initialization/application information...........................................................................................................................477
21.5.1 eDMA initialization.....................................................................................................................................477
21.5.2 Programming errors.....................................................................................................................................479
21.5.3 Arbitration mode considerations..................................................................................................................480
21.5.4 Performing DMA transfers..........................................................................................................................480
21.5.5 Monitoring transfer descriptor status...........................................................................................................484
21.5.6 Dynamic programming................................................................................................................................486
Chapter 22
External Watchdog Monitor (EWM)
22.1 Introduction...................................................................................................................................................................489
22.1.1 Features........................................................................................................................................................489
22.1.2 Modes of Operation.....................................................................................................................................490
22.1.3 Block Diagram.............................................................................................................................................491
22.2 EWM Signal Descriptions............................................................................................................................................492
22.3 Memory Map/Register Definition.................................................................................................................................492
22.3.1 Control Register (EWM_CTRL).................................................................................................................492
22.3.2 Service Register (EWM_SERV)..................................................................................................................493
22.3.3 Compare Low Register (EWM_CMPL)......................................................................................................494
22.3.4 Compare High Register (EWM_CMPH).....................................................................................................494
22.4 Functional Description..................................................................................................................................................495
22.4.1 The EWM_out Signal..................................................................................................................................495
22.4.2 The EWM_in Signal....................................................................................................................................496
K10 Sub-Family Reference Manual, Rev. 6, Nov 2011
18 Freescale Semiconductor, Inc.