Apparatus and method for reducing domain-transition latency in power gating

Apparatus and method for reducing domain-transition latency in power gating

We propose an apparatus and method for reducing the delay time due to the wake-up and state recovery of a circuit required when switching between power domains. The apparatus includes a power control part for controlling power supply to a domain, and a control part which restores a state of the doma...

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Hauptverfasser: KIM, HAG YOUNG, SHIN, CHI HOON, CHA, JAE GEUN
Format: Patent
Sprache:eng ; kor
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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SHIN, CHI HOON
CHA, JAE GEUN
description We propose an apparatus and method for reducing the delay time due to the wake-up and state recovery of a circuit required when switching between power domains. The apparatus includes a power control part for controlling power supply to a domain, and a control part which restores a state of the domain by waking-up another domain in advance when one domain is executed, and stops the power supply of the remaining domains except one of the waked-up domains which is be executed next, when the operation of executing domain is stopped. So, the delay time can be reduced. 파워도메인 간 전환이 이루어질 때 필요한 회로의 웨이크업(wake-up) 및 상태 복원으로 인한 지연시간을 줄이기 위한 장치 및 방법을 제시한다. 제시된 장치는 도메인으로의 전원 공급을 제어하는 전원 제어부, 및 하나의 도메인이 수행 중일 때 다른 도메인을 미리 깨워 상태를 복원하고, 수행 중이던 도메인이 동작을 종료하면 깨어있던 도메인 중에서 다음에 수행될 도메인을 제외한 나머지 도메인의 전원 공급을 중단하도록 상기 전원 제어부를 제어하는 제어부를 포함한다.
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title Apparatus and method for reducing domain-transition latency in power gating
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