Embedded memory for field programmable gate array

Details Embedded memory for field programmable gate array Embedded memory for field programmable gate array

1996-10-23

1998-09-01

Tokar, Michael J.

Electronic digital logic circuitry

Multifunctional or programmable

Array

326 38, H03K 19177

Patent

active

058015477

ABSTRACT:
A programmable logic device has a configuration memory which is partitioned so that it includes at least one subarray available through the programmable interconnect of the user configurable logic to be used as user memory. Subarrays of the configuration memory have independent access logic coupled with them, and coupled to the user logic array so that they may be used independently as user memories. Subarray memory access logic is provided for each subarray of memory elements, and connected to the logic cell array, and optionally to the plurality of input/output cells on the device, including a subarray decoder used for selecting addressed memory elements in the corresponding subarray in response to address signals and control signals supplied across the interconnect structures of the logic cell array, and a subarray I/O path used to provide input and output data signals between the interconnect structures of the logic cell array and addressed memory elements in the subarray. Thus, each subarray of memory elements, its corresponding subarray decoder and subarray I/O path, are independently configurable in the programmable logic device for use as user memory.

REFERENCES:
patent: 4876466 (1989-10-01), Kondou et al.
patent: 5343406 (1994-08-01), Freeman et al.
patent: 5570040 (1996-10-01), Ltyle et al.
patent: 5572148 (1996-11-01), Lytle et al.
patent: 5600597 (1997-02-01), Kean et al.
patent: 5705938 (1998-01-01), Kean
patent: 5737235 (1998-04-01), Kean et al.
Iwanczuk, "Using the XC4000 RAM Capability," Xilinx Data Book, 1994, pp. 8-127 to 8-141.

Affiliated with

Also associated with

Rating

Embedded memory for field programmable gate array does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Embedded memory for field programmable gate array, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Embedded memory for field programmable gate array will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-273209