Analog front-end filter, 4 fifo and dma transfer for analog output, Fifo – ADLINK PCI-9527 User Manual

Page 42: Bus-mastering dma data transfer, Fifo and dma transfer for analog output

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Operation Theory

ADLINK Technology Inc.

Analog Front-End Filter

Each channel has a 3-pole low pass filter. The cutoff frequency is
set at 110 KHz to limit the bandwidth of the signal path. This will
mostly reject out of band images and noise.

3.3.4

FIFO and DMA Transfer For Analog Output

FIFO

There are two FIFOs implemented on PCI-9527 for the analog
output function. Each FIFO depth is 2048 samples.

Bus-mastering DMA Data Transfer

For analog output operation, the data will be transferred from host
PC memory to onboard FIFO by DMA transfer. Please refer to
section 3.2.4 for detail description.