Remote Access with uvm_reg_field

[harrygries]

I have a design where a bit field in a register modifies a remote bit field in another register. In another case, it actually returns the value of another bit field when read.

The configure and the access related methods for uvm_reg_field do not seem to have a way to specify this type of remote access. I can set W1S or W1C, but it applies to the uvm_reg_field accessed and not the remore uvm_reg_field.

Am I missing a way to do this that already exists?

If not, is there a good methodology to do this?

[petermonsson]

Hi Harry,

I think that this is outside basic UVM and IP-XACT terminology, but have a look at the UVM Register Callbacks (uvm_reg_cb) http://www.vmmcentral.org/uvm_vmm_ik/files3/reg/uvm_reg_cbs-svh.html and the uvm_reg_field:: predict method. Combining those two may be able to do it. I hope this helps.

Best Regards

Peter

Edited September 28, 2012 by petermonsson
editing to remove the stupid smileys

[harrygries]

Hi Peter,

So, this would be a custom implementation rather than something standard for the base class, correct? Perhaps this is something that could be considered for a future revision of UVM so that there is a standard method.

Harry

[petermonsson]

Hi Harry,

Correct, that would be a custom implementation for the registers where you have this behavior. I can't comment on the enhancement request; this is outside my expertise.

Best Regards

Peter

[angleblue63]

Option A give us advantage of Reuse, finding/localizing issues at boundary level. But we can use this for Gate Level sims

Option B gives us advantage of using the SB for gate level sims... but involves a lot of rework.