Texas Instruments TMS320C3x User Manual

Page 458

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DMA Controller

12-79

Peripherals

-

Transfer a 128-word block of data from on-chip memory to off-chip
memory and generate an interrupt on completion. Invert the memory or-
der; the highest addressed member of the block is to become the lowest
addressed member.

DMA source address:

809800h

DMA destination address:

800000h

DMA transfer counter:

00000080h

DMA global control:

00000C93h

CPU/DMA interrupt-enable (IE): 00000400h

-

Transfer a 200-word block of data from the serial-port 0 receive register
to on-chip memory and generate an interrupt on completion. Synchronize
the transfer with the serial-port 0 receive interrupt.

DMA source address:

80804Ch

DMA destination address:

809C00h

DMA transfer counter:

000000C8h

DMA global control:

00000D43h

CPU/DMA interrupt-enable (IE): 00200400h

-

Transfer a 200-word block of data from off-chip memory to the serial-port 0
transmit register and generate an interrupt on completion. Synchronize with
the serial-port 0 transmit interrupt.

DMA source address:

809C00h

DMA destination address:

808048h

DMA transfer counter:

000000C8h

DMA global control:

00000E13h

CPU/DMA interrupt-enable (IE): 00400400h

-

Transfer data continuously between the serial-port 0 receive register and
the serial-port 0 transmit register to create a digital loop back. Synchronize
with the serial-port 0 receive and transmit interrupts.

DMA source address:

80804Ch

DMA destination address:

808048h

DMA transfer counter:

00000000h

DMA global control:

00000303h

CPU/DMA interrupt-enable (IE): 00300000h

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