How to estimate power consumption at the IP design level?

Status
Not open for further replies.

luoyanghero

Junior Member level 3
Joined
Nov 22, 2016
Messages
29
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Location
ShengXiaLu
Activity points
1,219
description:
In the IP design stage, sometimes there is no actual foundry-library to test IP performance, so will use similar foundry-library (or even any foundry-library) for testing.
IP test points are: highest frequency, area, power consumption.
As for area, we can use '2-input-NAND' as the unit area, and calculate the gate-count for the area estimate.
problem:
As for the power consumption, is there any quantity as the unit for power consumption, and thus there is a quantity for power consumption estimating?
 

RTL level: Using tools, such as spyglass power, joulus
Gate level: Using tools, PTPX
 

I don't understand the question. The unit utilised for power is W, there is no need for a proxy for power.
 

If you know roughly how frequently FFs and gates toggle for a particular design, you can multiply that factor by the number of gates times the power consumption for the average gate, for a very coarse estimate. But it's very easy to be orders of magnitude out.
 
Thanks a lot. gates toggle can be as a quantity for power coarse calculate.

- - - Updated - - -

'W' is an absolutely unit. I want to find a relative unit.
 

Status
Not open for further replies.
Cookies are required to use this site. You must accept them to continue using the site. Learn more…