February, 2007
Hot Plug Board Insertion and Removal Process
Table 9-4. Hot Plug Board Insertion Process (Cont.)
Operator / Action
Hot Plug Controller
Software
D. Power Indicator blinks. 12. Sets Power Indicator Control field to 10b.
13. Power Indicator Blink message is transmitted
to the downstream device.
14. Sets Command Completed bit to 1.
15. Generates Interrupt message due to Power Indicator
Clears Command Completed bit to 0.
Turn On command completion, if enabled.
16. Transmits Interrupt de-assertion message,
if enabled.
Clears Slot Control register
Power Controller Control bit to 0, to turn On
power to the port.
17. Slot is powered up.
18. After a T
delay, sets Command Completed bit
pepv
to 1.
Clears Command Completed bit to 0.
19. Generates Interrupt message due to Power Turn On
command completion, if enabled.
20. Transmits Interrupt de-assertion message,
if enabled.
Writes to the Slot Control register Power
Indicator Control field, to turn On the Power
Indicator LED, which indicates that the slot
is fully powered On.
21. Sets Power Indicator Control field to 01b.
22. Transmits Interrupt assertion message due to
Power Indicator Turn On command completion,
if enabled.
Clears Command Completed bit to 0.
E. Power Indicator On.
23. Transmits Interrupt de-assertion message,
if enabled.
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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