from Altera Corporation
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Features
- Highly parameterized cyclical redundancy check (CRC) generator and checker
- CRC-32, CRC-16-ANSI, and CRC-16-CCITT generator polynomials
- High-speed operation, over 250 MHz for many configurations
- Configurable input datapath width, from 1 bit to 256 bits (power-of-two)
- Configurable CRC starting value
- Avalon® Streaming (Avalon-ST) interface for message/codeword bits
- Support for all possible end-of-packet byte residues
- Verilog and VHDL demonstration testbenches
- Easy-to-use MegaWizard® Plug-In Manager interface
- Intellectual property (IP) functional simulation models for use in Altera-supported VHDL and Verilog HDL simulators
- Support for OpenCore Plus evaluation
General Description
The CRC compiler generates high-performance circuits to generate or check CRC checksums for packet-based communication. The CRC compiler's generator uses an Avalon-ST interface to receive data and emits generated checksums on a dedicated output. The CRC compiler's checker similarly uses an Avalon-ST interface to receive a packet with a CRC checksum and uses a dedicated output to indicate if the checksum is correct. The CRC compiler generator and checker MegaCore® functions do not store any data, checksums, or status.
OpenCore Plus Evaluation
Use the Altera® OpenCore Plus Evaluation flow to test drive this IP core.
Performance
Typical expected performance and utilization figures for this core are provided in the CRC Compiler User Guide(PDF).
Technical Support
For technical support on this MegaCore function, please visit the Altera mySupport online issue tracking system. You may also search for related topics on this function in the Altera Knowledge Database.
