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Powerspan pci registers – Interphase Tech 4538 User Manual

Page 37

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Chapter 1: Hardware Description

4538 Hardware Reference Manual

15

These registers are initialized with fixed reset values or with values stored in the I²C serial
EEPROM and then used by the PCI HOST, mainly during the Power-On Self Test (POST)
for plug and play functionality or later by the operating system for enumeration.

The PCI Vendor ID equals 0x107E, and the PCI Device ID equals 0x9070.

PowerSpan PCI Registers

These registers are used to define the parameters of the PCI-to-Local windows. They are
mapped in the PCI memory space (base address defined in PCI configuration register 0x14
PCIBAR1) and in the local space for the local processor (base address 0xF0020000).

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Table 1-16. PowerSpan PCI Registers

Offset

Register

Description

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Table 1-15. PCI Configuration Registers (cont)

Register

Size

PCI cfg

Address

Local

Offset

Description