Справочник Пользователя для HP A2Y15AV

198

Datasheet, Volume 2

PCI Express* Hot-Plug is not supported on the processor. 

15:13

RO

0h

12

RO

0b

Uncore

(DLLSCE)
If the Data Link Layer Link Active capability is implemented, when 

set to 1b, this field enables software notification when Data Link 

Layer Link Active field is changed. 
If the Data Link Layer Link Active capability is not implemented, 

this bit is permitted to be read-only with a value of 0b.

11

RO

0b

Uncore

Reserved for Electromechanical Interlock Control (EIC)
If an Electromechanical Interlock is implemented, a write of 1b to 

this field causes the state of the interlock to toggle. A write of 0b 

to this field has no effect. A read to this register always returns a 

0.

10

RO

0b

Uncore

Reserved for Power Controller Control (PCC)
If a Power Controller is implemented, this field when written sets 

the power state of the slot per the defined encodings. Reads of 

this field must reflect the value from the latest write, even if the 

corresponding hot-plug command is not complete, unless 

software issues a write without waiting for the previous command 

to complete in which case the read value is undefined.
Depending on the form factor, the power is turned on/off either to 

the slot or within the adapter. Note that in some cases the power 

controller may autonomously remove slot power or not respond to 

a power-up request based on a detected fault condition, 

independent of the Power Controller Control setting. 
The defined encodings are:
0 = Power On
1 = Power Off 
If the Power Controller Implemented field in the Slot Capabilities 

register is set to 0b, then writes to this field have no effect and 

the read value of this field is undefined.

9:8

RO

00b

Uncore

Reserved Power Indicator Control (PIC)
If a Power Indicator is implemented, writes to this field set the 

Power Indicator to the written state. Reads of this field must 

reflect the value from the latest write, even if the corresponding 

hot-plug command is not complete, unless software issues a write 

without waiting for the previous command to complete in which 

case the read value is undefined. 
00 = Reserved
01 = On
10 = Blink
11 = Off 
If the Power Indicator Present bit in the Slot Capabilities register 

is 0b, this field is permitted to be read-only with a value of 00b.