the joint circuit of DSP and 8237

Published:2011/5/29 23:19:00 Author:Ariel Wang | Keyword: joint, DSP | From:SeekIC

The circuit as the chart below provides DMA service signal from 4 channels' peripheral demands.And 8237 has AEN pin.It can satisfy all requests of chart 1.So it reallizes the interface between DSP and the sound card.In actual work,we based on the situation of usage of the sound card in PC to set up whether 8237's DREQ1 or DACK1 can be the play passage,whether 8237's DREQ3 or DACK3 can be the collecting passage,whether the break application signal IRQ7 goes through GAL16V8 becoming reversed with DSP'spin or not.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Amplifier_Circuit/the_joint_circuit_of_DSP_and_8237.html

Print this Page | Comments | Reading(3)