Freescale Semiconductor MPC5553 - Default Chapter; DMA Arbitration Mode Considerations

MPC5553/MPC5554 Microcontroller Reference Manual, Rev. 5
9-42 Freescale Semiconductor
9.5.4 DMA Arbitration Mode Considerations
9.5.4.1 Fixed Group Arbitration, Fixed Channel Arbitration
In this mode, the channel service request from the highest priority channel in the highest priority group
will be selected to execute. If the eDMA is programmed so the channels within one group use ‘fixed’
priorities, and that group is assigned the highest ‘fixed’ priority of all groups, it is possible for that group
eTPU_CDTRSR_A_DTRS28 46 ETPU.CDTRSR_A[DTRS28] eTPUA Channel 28 Data Transfer
Request Status
eTPU_CDTRSR_A_DTRS29 47 ETPU.CDTRSR_A[DTRS29] eTPUA Channel 29 Data Transfer
Request Status
SIU_EISR_EIF0 48 SIU.SIU_EISR[EIF0] SIU External Interrupt Flag 0
SIU_EISR_EIF1 49 SIU.SIU_EISR[EIF1] SIU External Interrupt Flag 1
SIU_EISR_EIF2 50 SIU.SIU_EISR[EIF2] SIU External Interrupt Flag 2
SIU_EISR_EIF3 51 SIU.SIU_EISR[EIF3] SIU External Interrupt Flag 3
eTPU_CDTRSR_B_DTRS0 52 ETPU.CDTRSR_B[DTRS0] eTPUB Channel 0 Data Transfer
Request Status
eTPU_CDTRSR_B_DTRS1 53 ETPU.CDTRSR_B[DTRS1] eTPUB Channel 1 Data Transfer
Request Status
eTPU_CDTRSR_B_DTRS2 54 ETPU.CDTRSR_B[DTRS2] eTPUB Channel 2 Data Transfer
Request Status
eTPU_CDTRSR_B_DTRS3 55 ETPU.CDTRSR_B[DTRS3] eTPUB Channel 3 Data Transfer
Request Status
eTPU_CDTRSR_B_DTRS12 56 ETPU.CDTRSR_B[DTRS12] eTPUB Channel 12 Data Transfer
Request Status
eTPU_CDTRSR_B_DTRS13 57 ETPU.CDTRSR_B[DTRS13] eTPUB Channel 13 Data Transfer
Request Status
eTPU_CDTRSR_B_DTRS14 58 ETPU.CDTRSR_B[DTRS14] eTPUB Channel 14 Data Transfer
Request Status
eTPU_CDTRSR_B_DTRS15 59 ETPU.CDTRSR_B[DTRS15] eTPUB Channel 15 Data Transfer
Request Status
eTPU_CDTRSR_B_DTRS28 60 ETPU.CDTRSR_B[DTRS28] eTPUB Channel 28 Data Transfer
Request Status
eTPU_CDTRSR_B_DTRS29 61 ETPU.CDTRSR_B[DTRS29] eTPUB Channel 29 Data Transfer
Request Status
eTPU_CDTRSR_B_DTRS30 62 ETPU.CDTRSR_B[DTRS30] eTPUB Channel 30 Data Transfer
Request Status
eTPU_CDTRSR_B_DTRS31 63 ETPU.CDTRSR_B[DTRS31] eTPUB Channel 31 Data Transfer
Request Status
Table 9-22. DMA Request Summary for eDMA (Continued)
DMA Request Channel Source Description