Patent · US Active

Method and a portable computing device (PCD) for exposing a peripheral component interface express (PCIE) coupled device to an operating system operable on the PCD

US8984174B2 · kind B2 · utility

0Cited by

5References

13Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Craig A. Aiken · Austin, US
Gerald Chambers · Boulder, US
Richard J. Shanks · Boulder, US

Key dates

Filing date	Jan 16, 2012
Grant date	Mar 17, 2015
Priority date	—
Expiry date	Sep 13, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG06F9/4411
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

In a portable computing device having a system-on-chip (SoC) Acorn RISC Machine (ARM)-based resource architecture, a peripheral component interconnect express (PCIe) bus is used to insert PCIe device memory into system memory absent a PCIe driver. During a PCIe initialization, the contents of PCIe base address registers (BARs) are mapped or otherwise updated to coincide with values assigned to the PCIe device in the advanced configuration and power interface (ACPI) tables.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.