NXP Semiconductors MPC5566, Reference Manual

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Enhanced Direct Memory Access (eDMA)
MPC5566 Microcontroller Reference Manual, Rev. 2
9-4 Freescale Semiconductor
9.2 Memory Map and Register Definition
9.2.1 Memory Map
The eDMA programming model is partitioned into two regions:
Region 1 defines control registers; region 2 defines the local transfer control for the descriptor memory.
Some registers are implemented as two 32-bit registers, and include an “H” and “L” suffix, signaling the
“high” and “low” portions of the control function.
Table 9-1 is a 32-bit view of the eDMA memory map.
Table 9-1. eDMA 32-bit Memory Map
Address Register Name Register Description Bits
Base (0xFFF4_4000) EDMA_CR eDMA control register 32
Base + 0x0004 EDMA_ESR eDMA error status register 32
Base + 0x0008 EDMA_ERQRH eDMA enable request high register 32
Base + 0x000C EDMA_ERQRL eDMA enable request low register 32
Base + 0x0010 EDMA_EEIRH eDMA enable error interrupt high register 32
Base + 0x0014 EDMA_EEIRL eDMA enable error interrupt low register 32
Base + 0x0018 EDMA_SERQR eDMA set enable request register 8
Base + 0x0019 EDMA_CERQR eDMA clear enable request register 8
Base + 0x001A EDMA_SEEIR eDMA set enable error interrupt register 8
Base + 0x001B EDMA_CEEIR eDMA clear enable error interrupt register 8
Base + 0x001C EDMA_CIRQR eDMA clear interrupt request register 8
Base + 0x001D EDMA_CER eDMA clear error register 8
Base + 0x001E EDMA_SSBR eDMA set start bit register 8
Base + 0x001F EDMA_CDSBR eDMA clear done status bit register 8
Base + 0x0020 EDMA_IRQRH eDMA interrupt request high register 32
Base + 0x0024 EDMA_IRQRL eDMA interrupt request low register 32
Base + 0x0028 EDMA_ERH eDMA error high register 32
Base + 0x002C EDMA_ERL eDMA error low register 32
Base + 0x0030 EDMA_HRSH eDMA hardware request status high 32
Base + 0x0034–0x00FF — Reserved —
Base + 0x0100 EDMA_CPR0 eDMA channel 0 priority register 8
Base + 0x0101 EDMA_CPR1 eDMA channel 1 priority register 8
Base + 0x0102 EDMA_CPR2 eDMA channel 2 priority register 8
Base + 0x0103 EDMA_CPR3 eDMA channel 3 priority register 8
Base + 0x0104 EDMA_CPR4 eDMA channel 4 priority register 8