PCI CONFIGURATION SPACE MAP Meaning and
Definition
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PCI configuration space map refers to a technical concept that pertains to the layout or organization of the configuration space of a Peripheral Component Interconnect (PCI) device. The PCI configuration space is a reserved portion of a PCI device's memory that stores crucial information about the device's specifications, capabilities, and status.
The configuration space map outlines the structure and allocation of memory addresses within the configuration space. It defines the location and size of each field or register that contains specific information about the device. This map serves as a blueprint or guide for both the device driver and the operating system to access and manipulate the device's configuration space.
The PCI configuration space map typically consists of a fixed set of registers, each representing a specific capability or attribute of the device. These registers may contain information such as the device's vendor and device ID, class code, interrupt request (IRQ) lines, base addresses, power management settings, and other configuration parameters. By accessing the configuration space registers through their defined addresses, system software can retrieve or modify device-related data and configure the device's behavior as required.
The configuration space map is essential for proper initialization, configuration, and control of PCI devices by the operating system. It allows the system software to communicate effectively with the device, identify its capabilities, and allocate system resources accordingly.
Common Misspellings for PCI CONFIGURATION SPACE MAP
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