Datasheet

Table Of Contents
DMA Controller Module
Freescale Semiconductor 16-5
16.4.1 Source Address Registers (SAR0–SAR3)
SARn, shown in Figure 16-4, contains the address from which the DMA controller requests data.
Table 16-2. Memory Map for DMA Controller Module Registers
DMA
Channel
IPSBAR
Offset
[31:24] [23:16] [15:8] [7:0]
0 0x100 Source address register 0 (SAR0) [p. 16-5]
0x104 Destination address register 0 (DAR0) [p. 16-6]
0x108 DMA control register 0 (DCR0) [p. 16-7]
0x10C Byte count register 0 (BCR24BIT = 0)
1
1
The DMA module originally supported a left-justified 16-bit byte count register (BCR). This function was later
reimplemented as a right-justified 24-bit BCR. The operation of the DMA and the interpretation of the BCR is controlled
by the MPARK[BCR24BIT]. See Section 8.5.3, “Bus Master Park Register (MPARK)" for more details.
Reserved
0x10C Reserved Byte count register 0 (BCR24BIT = 1)
1
(BCR0) [p. 16-7]
0x110 DMA status register 0
(DSR0) [p. 16-10]
Reserved
1 0x140 Source address register 1 (SAR1) [p. 16-5]
0x144 Destination address register 1 (DAR1) [p. 16-6]
0x148 DMA control register 1 (DCR1) [p. 16-7]
0x14C Byte count register 1 (BCR24BIT = 0)
1
Reserved
0x14C Reserved Byte count register 1 (BCR24BIT = 1)
1
(BCR1) [p. 16-7]
0x150 DMA status register 1
(DSR1) [p. 16-10]
Reserved
2 0x180 Source address register 2 (SAR2) [p. 16-5]
0x184 Destination address register 2 (DAR2) [p. 16-6]
0x188 DMA control register 2 (DCR2) [p. 16-7]
0x18C Byte count register 2 (BCR24BIT = 0)
1
Reserved
0x18C Reserved Byte count register 2 (BCR24BIT = 1)
1
(BCR2) [p. 16-7]
0x190 DMA status register 2
(DSR2) [p. 16-10]
Reserved
3 0x1C0 Source address register 3 (SAR3) [p. 16-5]
0x1C4 Destination address register 3 (DAR3) [p. 16-6]
0x1C8 DMA control register 3 (DCR3) [p. 16-7]
0x1CC Byte count register 3 (BCR24BIT = 0)
1
Reserved
0x1CC Reserved Byte count register 3 (BCR24BIT = 1)
1
(BCR3) [p. 16-7]
0x1D0 DMA status register 3
(DSR3) [p. 16-10]
Reserved
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3