Teledyne LeCroy PETrainer Scripting Language Reference Manual - Manual (Page 37)

Teledyne LeCroy PETrainer Scripting Language
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5 Link Command
All of these commands, with the exception of Link = InitFC, are controls to the Link Training and Status
State Machine (also known as the LTSSM). These commands are issued to the LTSSM to steer it to a
particular state. This is not a means to force the Link state to a particular value. For instance, if the Script
contains the Link = L0 command, it is a request to bring the link to the L0 state. The LTSSM is
responsible for managing all of the link training and all of the intermediate link states to accomplish this.
5.1 Link = L0
Transitions the link into the L0 state.
5.2 Link = L0s
Transitions the link into the L0s (low power) state. Applies only in L0 state.
5.3 Link = L1
Transitions the link into the L1 (low power) state. Applies only in L0 state.
The transition to L1 state will happen under the protocol selected (ASPM or PCIPM) in the generation
options file.
Note:
Command supported only by Z3 Trainer.
5.4 Link = L23
Z3 initiates protocol to enter L2 (or L3 if Vaux is not present on the bus) low power state.
Note:
Command supported only by Z3 Trainer.
5.5 Link = Disabled
Tells the LTSSM to move into the Disabled State. To get to this state, the LTSSM must either be in the
Configuration State or the Recovery State. If the link is currently in the Detect state, and the
Link=Disabled command is issued, it goes to Configuration first and then goes directly to Disabled. Once
in the Disabled state, the LTSSM sends 16 TS1's with the Disable Link modifier bit set, followed by an
electrical Idle ordered set, followed by electrical idle. To exit the Disabled state, simply set Link=Detect or
Link=L0.
Note:
Command supported only by Z3 Trainer.
5.6 Link = HotReset
Tells the LTSSM to move into the HotReset State. To get to this state, the LTSSM must first be in the
Recovery state. Once in the HotReset State, the LTSSM sends TS1 ordered sets with the HotReset
modifier bit set. The LTSSM then goes to the Detect state automatically after 2 ms.
Note:
Command supported only by Z3 Trainer.
5.7 Link = Recovery
Transitions the link into the Recovery state. Applies only in L0, L0S, or L1 States.