hard core

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hard core

Engineering material, such as broken bricks, stones, etc., used to form a foundation for a road, paving, building, etc.
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

hard core

Lakatos’ term for that part of a scientific programme (see FALSIFICATIONISM) which is protected at all costs.
Collins Dictionary of Sociology, 3rd ed. © HarperCollins Publishers 2000

hard core

A block of digital logic that is designed to be implemented in an ASIC or FPGA chip. A chip design may be made up of one or more hard cores combined with one or more soft cores along with other blocks of user-defined logic.

For ASIC chips, a hard core is delivered as logic gates in which their physical locations relative to each other and their interconnections are predefined. This block will be treated as a "black box" by the place-and-route software that processes the entire design. The location of the block as a whole may be determined by the software, but the block's internal contents are "locked down."

With FPGAs, hard cores are already physically implemented as hardwired blocks embedded into the FPGA's fabric. See core, soft core, ASIC and FPGA.


How Hard Cores Fit In
When used in an ASIC chip, information about the hard core is entered at various stages to make room for it before its actual layers are added. With FPGAs, floor planning is still done, but the microprocessor core and other IP blocks are already in place. Consequently, instead of a gate-level netlist, a lookup table/configurable logic block (LUT/CLB) netlist is created, and the final output for FPGAs is a configuration file rather than GDSII files.
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References in periodicals archive ?
In a city unaccustomed to such upheaval, police have fired tear gas and rubber bullets while the parliament has been trashed by protesters as Beijing's authority faces its most serious challenge since Hong Kong was handed back to China in 1997.Sunday's rally which will follow a now well-trodden route through the main island's streets will be the seventh weekend in a row that protesters have come out en masse.HARD-CORE PROTESTORSGenerally, the marches have passed off peacefully but are followed by violence between riot police and small groups of more hard-core protesters.
With Yates raging away so intensely that you fear for his blood pressure, and elements of dub and echo, tracks such as Generator most resemble a hard-core Killing Joke.
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If a customer's overdraft does not reduce below a certain amount each year, then that amount is considered to be hard-core borrowing - pounds 50,000 hard-core borrowing is costing from pounds 250 to pounds 500 a year in unnecessary renewal fees.
It might not be Brokeback Halo, but it's hard not to admire such a hard-core game that seems to have a soul--and possibly even a queer one at that.
Both hard-core birders and nature lovers will appreciate this stunning book.
The major media have preferred to completely ignore the fact that the organizational brainpower and manpower for the illegal alien rallies has been provided by a network of veteran, hard-core Marxists.
Here then he holds true to his hard-core modernist roots both in space and material with a series of interior spaces that are directly defined by the external form, with little or no interstitial space; true to form, and true to materials.
QUEERCORE BLITZ, THE FIRST AND only organized tour to showcase an all-queer lineup of punk, rock and hard-core bands from around the United States, is set this summer to honor the DIY spirit of the anarchist underground movement of the late '80s, celebrating the best queer punk musicians of the new millennium.
As part of an ongoing effort to deliver the industry's highest-performing PC technology, AMD has announced the immediate availability of the AMD Athlon 64 FX-57 processor, the world's ultimate PC processor for enthusiasts and hard-core gamers.
As Benjamin Wittes noted recently in The Atlantic, Republicans now enjoy the best of both worlds: They can use the abortion issue to mobilize a hard-core pro-life base while not actually being obliged to enact the politically unpopular restrictions those groups would demand.