Analog Devices ADSP-21261 SHARC Hardware Reference Manual page 20

Contents
Parallel Data Acquisition Port (PDAP) ........................................ 11-6
Masking ................................................................................ 11-8
Packing Unit ......................................................................... 11-8
Packing Mode 11 .............................................................. 11-9
Packing Mode 10 .............................................................. 11-9
Packing Mode 01 ............................................................ 11-10
Packing Mode 00 ............................................................ 11-10
Clocking Edge Selection ...................................................... 11-11
Hold Input ......................................................................... 11-11
PDAP Strobe ...................................................................... 11-13
FIFO Control and Status .......................................................... 11-14
FIFO to Memory Data Transfer ................................................ 11-15
Interrupt-Driven Transfers ................................................. 11-16
Starting an Interrupt-Driven Transfer .............................. 11-16
Interrupt-Driven Transfer Notes .......................................... 11-18
DMA Transfers ................................................................... 11-18
Starting DMA Transfers .................................................. 11-18
DMA Transfer Notes ...................................................... 11-20
DMA Channel Parameter Registers ...................................... 11-22
IDP (DAI) Interrupt Service Routines for DMAs ................. 11-23
Input Data Port Programming Example .................................... 11-24
DIGITAL AUDIO INTERFACE
Structure of the DAI ................................................................... 12-1
DAI System Design .................................................................... 12-2
xx ADSP-2126x SHARC Processor Hardware Reference