MPC5510 Microcontroller Family Reference Manual, Rev. 1
Freescale Semiconductor
13-1
Preliminary
Chapter 13
DMA Channel Mux (DMA_MUX)
13.1
Introduction
The DMA_MUX allows for software selection of 16 out of 64 possible DMA sources. Up to fifty-five of
these DMA sources are requests from peripherals, but four of the peripheral sources are reserved and will
behave as always disabled sources. Eight sources are always enabled and will generate a DMA request as
soon as that source is selected. One source (the default for all channels) is always disabled.
13.1.1
Block Diagram
A simplified block diagram of the DMA_MUX is shown in
.
Figure 13-1. DMA_MUX Block Diagram
Peripheral Source #1
Peripheral Source #2
Peripheral Source #3
Peripheral Source #55
DMA Channel #1
DMA Channel #2
DMA Channel #3
DMA Channel #4
DMA Channel #5
DMA Channel #6
DMA Channel #7
DMA Channel #8
DMA Channel #9
DMA Channel #10
DMA Channel #11
DMA Channel #12
DMA Channel #13
DMA Channel #14
DMA Channel #15
DMA Channel #0