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Question asked by nitin@anglia on Mar 16, 2015
Latest reply on Mar 27, 2015 by Harshit.Gaharwar

I have a system where ADSP-21489 is dealing with 3 clock domains, Input Clock, Local Clock and Output clock. Data Rate match them through using internal Block RAM/ROM to overcome clock differences because of ppm. So SPDIF Input @ CLK1 is first stored in Block0&1 and then RAM is read from Local Clock or DSP core clock, data is processed and written to Block3&4 and then it read out @ CLK3 using DIP Peripheral.

Could the system handle multiple clocks and Rate matching is possible through Block RAMs. Are these Block RAM bounded together or they can be used independently?

Please see below -