What is an IP Core ?.

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Presentation transcript:

What is an IP Core ?

In electronic design a semiconductor intellectual property core, IP core, or IP block is a reusable unit of logic, cell, or chip layout design that is the intellectual property of one party. IP cores may be licensed to another party or can be owned and used by a single party alone. The term is derived from the licensing of the patent and/or source code copyright that exist in the design. IP cores can be used as building blocks within ASIC chip designs or FPGA logic designs

Soft cores Synthesizable cores are delivered in a hardware description language such as Verilog or VHDL. These are analogous to high level languages such as C in the field of computer programming. IP cores delivered to chip makers as RTL permit chip designers to modify designs (at the functional level), though many IP vendors offer no warranty or support for modified designs. Gate Level Netlists Cores. The netlist is a boolean-algebra representation of the IP's logical function implemented as generic gates or process specific standard cells. An IP core implemented as generic gates is portable to any process technology. A gate-level netlist is analogous to an assembly-code listing in the field of computer programming.

Hard cores Digital IP cores are sometimes offered in silicon mask layout format. Such cores, whether analog or digital, are called "hard cores" (or hard macros), because the core's application function cannot be meaningfully modified by chip designers. Transistor layouts must obey the target foundry's process design rules, and hence, hard cores delivered for one foundry's process cannot be easily ported to a different process or foundry. Merchant foundry operators (such as IBM, Fujitsu, Samsung, TI, etc.) offer a variety of hard-macro IP functions built for their own foundry process, helping to ensure customer lock-in. Hard cores, by the nature of their low-level representation, offer better predictability of chip performance in terms of timing performance and area.