Programable multi-port memory BIST with compact microcode

Details Programable multi-port memory BIST with compact microcode Programable multi-port memory BIST with compact microcode

2007-01-23

2007-01-23

Le, Dieu-Minh (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S733000

Reexamination Certificate

active

10354535

ABSTRACT:
A microcode programmable built-in-self-test (BIST) circuit and method for testing a multiported memory via multiple ports, either simultaneously or sequentially, as directed by a microcode instruction word. The microcode instruction word contains a plurality of executable subinstructions and one bit of information that controls whether the test operations prescribed in the plurality of subinstructions shall be executed in parallel or in series. The executable subinstructions are dispatched by a primary controller to subcontrollers which perform test operations at each port according to the subinstructions. The microcode programable BIST architecture flexibly facilitates the testing of multiple devices, multiported devices, including multiported memory structures and complex dependent multiported memory structures. The BIST supports in-situ testing of the functionality of the memory at wafer, module, and burn-in, as well as system-level testing.

REFERENCES:
patent: 4674089 (1987-06-01), Poret et al.
patent: 5073891 (1991-12-01), Patel
patent: 5633877 (1997-05-01), Shephard et al.
patent: 5734613 (1998-03-01), Gibson
patent: 5742557 (1998-04-01), Gibson et al.
patent: 5764655 (1998-06-01), Kirihata et al.
patent: 5790564 (1998-08-01), Adams et al.
patent: 5796745 (1998-08-01), Adams et al.
patent: 5812469 (1998-09-01), Nadeau-Dostie et al.
patent: 5878051 (1999-03-01), Sharma et al.
patent: 5896330 (1999-04-01), Gibson
patent: 5897609 (1999-04-01), Choi et al.
patent: 5912850 (1999-06-01), Wood et al.
patent: 5951678 (1999-09-01), Moyer
patent: 5961653 (1999-10-01), Kalter et al.
patent: 6032274 (2000-02-01), Manning
patent: 6070256 (2000-05-01), Wu et al.
patent: 6216241 (2001-04-01), Fenstermaker et al.
patent: 6311298 (2001-10-01), Norrie

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