Electronic apparatus including device configured to be shifted to power saving state and connected to PCI device, and control method thereof
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United States of America Patent
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Jun 15, 2021
Grant Date -
Aug 6, 2020
app pub date -
Jan 28, 2020
filing date -
Feb 6, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
An electronic apparatus includes a semiconductor integrated circuit, another semiconductor integrated circuit connected to the semiconductor integrated circuit via a peripheral component interconnect (PCI) bus, and devices (a hard disk drive (HDD), and a dynamic random access memory (DRAM)) connected to the another semiconductor integrated circuit. The semiconductor integrated circuit transmits a predetermined instruction to the another semiconductor integrated circuit, and the another semiconductor integrated circuit shifts the PCI bus to a non-communicable state or a state communicable at low speed. Thereafter, the another semiconductor integrated circuit shifts the devices (the HDD and the DRAM) to a power saving state.
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