Power management messages – Altera Stratix V Avalon-ST User Manual
Page 185

Message
Root
Port
Endpoint
Generated by
Comments
App
Layer
Core
Core
(with
App
Layer
input)
Deassert
_INTB
Receive Transmit No
No
No
Deassert
_INTC
Receive Transmit No
No
No
Deassert
_INTD
Receive Transmit No
No
No
Power Management Messages
Table 11-2: Power Management Messages
Message
Root
Port
Endpoi
nt
Generated by
Comments
App
Layer
Core
Core (with App
Layer input)
PM_
Active_
State_
Nak
TX
RX
No
Yes
No
—
PM_
PME
RX
TX
No
No
Yes
—
PME_
Turn_
Off
TX
RX
No
No
Yes
The
pme_to_cr
signal sends and
acknowledges this message:
• Root Port: When
pme_to_cr
is
asserted, the Root Port sends the
PME_turn_off
message.
• Endpoint: When
PME_to_cr
is
asserted, the Endpoint acknowl‐
edges the
PME_turn_off
message
by sending a
pme_to_ack
message to the Root Port.
PME_
TO_Ack
RX
TX
No
No
Yes
—
11-2
Power Management Messages
UG-01097_avst
2014.08.18
Altera Corporation
Transaction Layer Protocol (TLP) Details