公开(公告)号：US10747923B2

公开(公告)日：2020-08-18

申请号：US16365032

申请日：2019-03-26

Applicant: Intel Corporation

Inventor： Jing Zhang ,  Yan Li

IPC: G06F30/331 ,  G01R31/3177 ,  G06F7/58 ,  G06F30/34

Abstract: Programmable integrated circuits may be used to perform hardware emulation of an application-specific integrated circuit (ASIC) design. The ASIC design may be loaded onto the programmable integrated circuit as a circuit under test (CUT). During hardware emulation operations, an emulation host may be used to coordinate testing of the CUT on the programmable device. To help emulate a power gating event for the ASIC design, the programmable device may be provided with an encoder at the input of the CUT, a decoder at the output of the CUT, and a pseudorandom number generator (PRNG) that outputs a value for adjusting the encoder and decoder. The value output from the PRNG stays fixed when there is no power loss, but will change to a new value during a power gating event. Operated in this way, the data read out from the CUT after the power gating event is effectively corrupted.

公开(公告)号：US20190220559A1

公开(公告)日：2019-07-18

申请号：US16365032

申请日：2019-03-26

Applicant: Intel Corporation

Inventor： Jing Zhang ,  Yan Li

IPC: G06F17/50 ,  G06F7/58 ,  G01R31/3177

Abstract: Programmable integrated circuits may be used to perform hardware emulation of an application-specific integrated circuit (ASIC) design. The ASIC design may be loaded onto the programmable integrated circuit as a circuit under test (CUT). During hardware emulation operations, an emulation host may be used to coordinate testing of the CUT on the programmable device. To help emulate a power gating event for the ASIC design, the programmable device may be provided with an encoder at the input of the CUT, a decoder at the output of the CUT, and a pseudorandom number generator (PRNG) that outputs a value for adjusting the encoder and decoder. The value output from the PRNG stays fixed when there is no power loss, but will change to a new value during a power gating event. Operated in this way, the data read out from the CUT after the power gating event is effectively corrupted.