Programmable logic device with on-chip nonvolatile user memory

Details Programmable logic device with on-chip nonvolatile user memory Programmable logic device with on-chip nonvolatile user memory

2007-01-29

2009-06-23

Barnie, Rexford (Department: 2819)

Electronic digital logic circuitry

Multifunctional or programmable

Having details of setting or programming of interconnections...

C326S037000, C326S041000, C716S030000

Reexamination Certificate

active

07550994

ABSTRACT:
A programmable logic integrated circuit has user-accessible nonvolatile memory for use by the programmable logic. In a specific embodiment, the programmable logic integrated circuit has a programmable logic array portion and a nonvolatile memory array portion. The nonvolatile memory array portion is segregated into a boot data part and a user data partition. The boot data partition holds data for configuring the programmable logic portion on power up, and the user data partition is for use by the programmable logic. A user can store and retrieve data from the user data partition. A built-in oscillator can be programmably connected from the nonvolatile memory portion to the PLD portion.

REFERENCES:
patent: 6076149 (2000-06-01), Usami et al.
patent: 6212639 (2001-04-01), Erickson et al.
patent: 6538468 (2003-03-01), Moore
patent: 7190190 (2007-03-01), Camarota et al.
patent: 2003/0020512 (2003-01-01), Mantey et al.
patent: 2005/0097499 (2005-05-01), Sun et al.

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