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eSPI Agent Core, handling of inputs vw_irq0 and vw_irq1?

WFitt
Novice
167 Views

Hi,

the Intel eSPI Agent Core has two Virtual Wire input groups vw_irq0 and vw_irq1.

If I change the inputs (maybe vw_irq0 from 0x00 to 0x01) the IP core does not signalize this to the host pulling the signal alert# down.

On a GET_VWIRE from the host the eSPI Agent replies with status 0x030F (Virtual Wire TX Queue not available).

 

If I do the same with the input group ec_to_pch the Agent replies with status 0x34F (

Virtual Wire TX Queue available). Also the signal #alert is pulled down for one cycle by the slave.

 

So the signals vw_irq0 and vw_irq1 seem not to get handled like other VW signals.

How can I use them?

 

Regards

Wolfram

 

 

 

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4 Replies
hareesh
Employee
130 Views

Hi,

please share you eSPI ip configuration details. like bellow attached one

 

Screenshot 2022-12-30 063238.png

 

 

WFitt
Novice
101 Views

Hi,

I am using the same configuration for all cases:

 

WFitt_0-1672649599477.png

 

 

Regards

Wolfram

hareesh
Employee
55 Views

Hi,

may how you are testing this?

if you are testing on modelsim or questasim pls share project file.

or else share how your testing processing.



Thank you,


hareesh
Employee
33 Views

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