Write Effect Latency; Programming Models; External Port; Dma - Analog Devices SHARC ADSP-214 Series Hardware Reference Manual

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Write Effect Latency

For details on write effect latency, see the SHARC Processor Programming
Reference.

Programming Models

The following sections provide information on the various programming
models that are used through the external port interface.

External Port

The section describes software programming steps required for the suc-
cessful operation of the external port.

DMA

The following sections describe the programming steps for different types
of DMA transfers.

Standard DMA

Use the following procedure to set up and run a standard DMA on the
external port.
1. Configure the
desired wait states, data bus width, and so on. Configure the
registers to enable SDRAM/DDR2, and to set the desired clock
and timing settings, the data bus width, and other parameters.
2. Initialize the
3. If circular buffering is desired, use the corresponding TCB storage.
ADSP-214xx SHARC Processor Hardware Reference
www.BDTIC.com/ADI
registers to enable the AMI and to set the
AMICTLx
,
,
,
IIEP
IMEP
ICEP
EIEP
External Port
, and
registers.
EMEP
SDCTL
3-121

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