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CF Interleaver: Overview Details Name: cf_interleaver Created: 01-Apr-2003 19:44:03 Updated: 08-May-2008 08:31:47 CVS: no files in cvs Other project properties Category :: Memory core Development status :: Production/Stable Project maintainers Tom Hawkins Statistics view Description Cores are generated from Confluence; a modern logic design language. Confluence is a simple, yet highly expressive language that compiles into Verilog, VHDL, and C. See Confluent for more info. Memory interleavers are common components often found in signal processing applications. They are useful for buffering and reordering data and typically form the separation between design stages. Interleavers can be used for: Transposing Images for Image Processing Buffering Noncontinuous Input Data Data Shuffling Between FFT Ranks Features The memory interleaver consists of 2 interleaving memories: one memory loads input data, while the other dumps output data -- On a swap signal the 2 memories switch roles. The interface to an interleaver is: Inputs clock : Main clock. swap : Pulse to swap memories (input become output, output becomes input). write : Write enable to input memory. addr : Address to input memory. data : Data to input memory. Outputs sync_primary : Pulse to indicate an interleaver swap. sync_secondary : Pulse to indicate address 0 is output. data : Data dumped from output memory. Input data to the interleaver is addressable. Output data is dumped one memory location after another starting at address 0. Each file is stand-alone and represents a specific configuration. The 2 configuration parameters are: Address Width (Memory Depth) Data Width The configuration parameters are coded in the file names: cf_interleaver_8_32.v 8 : Address Width 32 : Data Width Current configurations: cf_interleaver_6_8 cf_interleaver_7_8 cf_interleaver_8_8 cf_interleaver_9_8 cf_interleaver_10_8 cf_interleaver_11_8 cf_interleaver_12_8 cf_interleaver_6_16 cf_interleaver_7_16 cf_interleaver_8_16 cf_interleaver_9_16 cf_interleaver_10_16 cf_interleaver_11_16 cf_interleaver_12_16 cf_interleaver_6_32 cf_interleaver_7_32 cf_interleaver_8_32 cf_interleaver_9_32 cf_interleaver_10_32 cf_interleaver_11_32 cf_interleaver_12_32 cf_interleaver_6_64 cf_interleaver_7_64 cf_interleaver_8_64 cf_interleaver_9_64 cf_interleaver_10_64 cf_interleaver_11_64 cf_interleaver_12_64