Electronic digital logic circuitry – Multifunctional or programmable – Array
Patent
1997-07-29
1999-12-07
Toker, Michael
Electronic digital logic circuitry
Multifunctional or programmable
Array
326 40, 326 41, G06F 738, H03K 19177
Patent
active
059990155
ABSTRACT:
A programmable logic device has subregions of programmable logic grouped together in logic regions. The subregions in each region share several control signals, which can be selected either from relatively global conductors on the device or from data inputs to the region. The control signals allow synchronous or asynchronous clearing of a register in each subregion. The control signals also allow synchronous loading of the register in each subregion, and the data loaded can be either one of the data inputs to the subregion (so-called lonely register operation) or a signal produced by the logic of the subregion.
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Cliff Richard G.
Heile Francis B.
Huang Joseph
Mendel David W.
Pedersen Bruce B.
Altera Corporation
Chang Daniel D.
Jackson Robert R.
Toker Michael
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