Reset and Initialization
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5.3.1
5.3.2
Selecting Configuration Values Using Serial EEPROM
Configuration values, for the registers defined in Section 11.6, “Configuration Header Registers,” can be
changed using the serial EEPROM, with the exception of those fixed by the PCI Express Base r1.0a or
not supported by the PEX 8532.
Selecting Upstream Port Using Serial EEPROM
The Debug Control register Upstream Port Number field (offset 1DCh[11:8]) values defined in
Table 5-1 determine the upstream port selection.
Table 5-1. Debug Control Register Upstream Port Number Field (Offset 1DCh[11:8]) Values
Station 0
0h = Port 0
Station 1
8h = Port 8
1h = Port 1
9h = Port 9
2h = Port 2
Ah = Port 10
Bh = Port 11
Ch to Fh = Reserved
3h = Port 3
4h to 7h = Reserved
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ExpressLane PEX 8532AA/BA/BB/BC 8-Port/32-Lane Versatile PCI Express Switch Data Book
Copyright © 2007 by PLX Technology, Inc. All Rights Reserved – Version 1.6
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