The PDSP16540 Bucket Buffer is for use in systems which require a reservoir in which a block of data is accumulated, whilst previous data is being transferred to other system elements and then processed. It thus prevents the loss of incoming data whilst the previous block is being processed. Like a FIFO all address are generated internally.

FEATURES

■ 1K x 32 bit dual port RAM for use as a reservoir in data flow systems

■ Up to 40 MHz read rates and 16 MHz write rates

■ Buffer size user programmable up to 1k words

■ A user programmble amount of old data can be reread before new data is added

■ Provides the input buffer requirements for the PDSP16510 FFT Processor when 1024 point continuous transforms are performed

■ User programmable get ready to Read Me Flag

■ Data Available Flag indicates the required amount of new data has been acquired

■ 84 Pin PGA or 132 Pin QFP