Electronic digital logic circuitry – Multifunctional or programmable – Array
Reexamination Certificate
2005-12-13
2005-12-13
Wamsley, Patrick (Department: 2819)
Electronic digital logic circuitry
Multifunctional or programmable
Array
C716S030000
Reexamination Certificate
active
06975137
ABSTRACT:
A programmable logic device (PLD) with a programmable logic core, block memory, and I/O circuitry has one or more blocks of standard-cell logic (SLBs) that are integrated into the PLD design to enable each SLB to be programmably connected to any one or more of the programmable core, the block memory, and/or the I/O circuitry. The addition of standard-cell-based functional blocks creates a PLD with increased overall logic density, a net smaller die size per function, lowered cost, and improvements to both power and performance characteristics relative to equivalent conventional PLDs, such as FPGAs.
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Lattice Semiconductor Corporation, “ORCA Series 4 FPGAs” datasheet, pp 1-6, 31-32, 39-48, and 57-74, Mar. 2003.
Andrews William B.
Chen Zheng
Ding Ming Hui
Fenstermaker Larry R.
Myers Anthony K.
Lattice Semiconductor Corporation
Wamsley Patrick
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