CS5920 datasheet(55/160 Pages) AMCC

Part #	CS5920

Description	Full 132 Mbytes/sec Transfer Rate

PDF	160 Pages

Scroll/Zoom	100%

Manufacturer	AMCC [Applied Micro Circuits Corporation]

Direct Link	http://www.amcc.com

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55 / 160 page

S5920 – PCI Product

Revision 1.01 – November 28, 2005

AMCC Confidential and Proprietary

DS1596

Data Book

Figure 18. Base Address Register - I/O

Bit

Description

31:2

Base Address Location. These bits are used to position the decoded region in I/O space. Only bits which return

a 1 after being written as 1 are usable for this purpose. Except for Base Address 0, these bits are individually

enabled by the contents sourced from the external nvRAM.

Reserved. This bit should be 0. (Note: disabled Base Address Registers will return all 0s for the entire register

location, bits 31 through 0).

Space Indicator = 1. When 1, this bit identifies a base address region as an I/O space and the remaining bits in

the base address register have the definition as shown in Figure 18.

Base Address

I/O Space

Indicator (RO)

Reserved (RO)

Programmable (R/W)

Bit

Value

CS5920 Datasheet(PDF) 55 Page - Applied Micro Circuits Corporation