MPC5553/MPC5554 Microcontroller Reference Manual, Rev. 5
9-4
Freescale Semiconductor
9.3
Memory Map/Register Definition
The eDMA’s programming model is partitioned into two regions: the first region defines a number of
registers providing control functions, while the second region corresponds to the local transfer control
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.
is a 32-bit view of the eDMA’s memory map.
Table 9-1. eDMA 32-bit Memory Map (Sheet 1 of 5)
Address
Register Name
Register Description
Size (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 (MPC5554 only)
32
Base + 0x000C
EDMA_ERQRL
eDMA enable request low register
32
Base + 0x0010
EDMA_EEIRH
eDMA enable error interrupt high register (MPC5554 only)
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 (MPC5554 only)
32
Base + 0x0024
EDMA_IRQRL
eDMA interrupt request low register
32
Base + 0x0028
EDMA_ERH
eDMA error high register (MPC5554 only)
32
Base + 0x002C
EDMA_ERL
eDMA error low register
32
Base + 0x0030–
Base + 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
Base + 0x0105
EDMA_CPR5
eDMA channel 5 priority register
8
Base + 0x0106
EDMA_CPR6
eDMA channel 6 priority register
8
Base + 0x0107
EDMA_CPR7
eDMA channel 7 priority register
8
Summary of Contents for MPC5553
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