S5920Q Applied Micro Circuits Corporation, S5920Q Datasheet - Page 66
S5920Q
Manufacturer Part Number
S5920Q
Description
Manufacturer
Applied Micro Circuits Corporation
Datasheet
1.S5920Q.pdf
(165 pages)
Specifications of S5920Q
Operating Temperature (min)
0C
Operating Temperature Classification
Commercial
Operating Temperature (max)
70C
Package Type
PQFP
Rad Hardened
No
Lead Free Status / Rohs Status
Not Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
S5920Q
Manufacturer:
AMCC
Quantity:
5 510
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S5920 – PCI Product: PCI Configuration Registers
Table 38. Read Response to Expansion ROM Base Address Register (after all ones written)
1. The Expansion ROM Base Address Register nvRAM boot value is internally hardwired to FFFFF80Xh, where X = 000xb (i.e., only the least-
AMCC Confidential and Proprietary
significant bit, or Address Decode Enable bit, is programmable). This defines both the minimum and maximum expansion ROM size sup-
ported by the S5920 (2K bytes). The Address Decode Enable bit in the nvRAM (the LSB) must be set to enable this region. If not set, a PCI
Configuration read of this region will always respond with 00000000h.
FFFFF801h
00000000h
Response
2K bytes (512 DWORDs)
none - disabled
Size in Bytes
00000000h or BIOS missing 1
FFFFF801h
nvRAM boot value
Revision 1.02 – April 12, 2007
Data Book
DS1596
66
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