GRLIB IP Library

The library includes cores for AMBA AHB/APB control, the LEON3 - LEON5 SPARC processors, the NOEL-V RISC-V processor, 32-bit PC133 SDRAM controller, 32-bit PCI bridge with DMA, 10/100/1000 Mbit Ethernet MAC, 8/16/32-bit PROM and SRAM controller, 16/32/64-bit DDR/DDR2 controllers, USB 2.0 host and device controllers, CAN controller, TAP controller, SPI, I2C, UART with FIFO, modular timer unit, interrupt controller, and a 32-bit GPIO port. Memory and pad generators are available for Virage, Xilinx, UMC, Atmel, Altera, Microchip, NanoXplore, eASIC and Lattice.

The library is provided under the GNU GPL license, but can also be licensed under commercial licensing conditions. There are four main distributions of GRLIB: open source (GPL), commercial for FPGA and ASIC implementations (COM), fault-tolerant for programmable devices (FT-FPGA) and fault tolerant (FT) for ASIC implementations. The distributions differ in terms on included IP and supported target technologies. Please refer to the GRLIB IP Core User's Manual for a complete list of all IP cores together with information on in which GRLIB distribution(s) each IP core is included or available.

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Documentation and downloads

• GRLIB User's Manual
• GRLIB IP Core User's Manual
• Download GRLIB VHDL source code
• Excel sheet for SOC area estimation
• Specific support for Lattice FPGAs
• Specific support for Microchip FPGAs
• Specific support for Xilinx FPGAs

GRLIB contains template designs for several FPGA boards (the set of included template designs changes with type of GRLIB distribution). A list of supported boards is available in the GRLIB IP Library User's Manual.