SLAVE read with variable latency problem

Hi All,

I wrapped a slave module with variable read latency in SOPC (Quartus 4.2).

I set in the .ptf :

1) Read_Latency = 0

2) Maximum_Pending_Read_Transaction=16

3) Read_Wait_State="peripheral_controlled"

4) also my slave module has a readdatavalid pin

All my masters are latancy aware. The generated switch produce a readdatavalid signal at the master that is wrong. It seems to be related only to the read and wait signal of my master. It looks like the latency is fixed to 0. Is there an other keyword for the .ptf I should add in order to tell SOPC that my slave module has a variable read latency capability?

Regards,

Alain Marchand