The PLL lock signal is generally asynchronous with respect to the user's system clock domains. This means that the signal does not have a predictable relationship with the system clock, making it challenging to model accurately in the software timing ...
Definition: Solution: tPD is the Propagation delay which is the time required for a digital signal to travel from the inputs of a logic gate to the output. If all other factors are held constant, the average propagation delay in a logic-gate IC ...
The recommendation is to create a simple test design that uses LSR, with your target device. Set constraints and examine the timing report for the concerned path (CLK vs LSR). The map and par trace reports will include all delay paths and timings. ...
Solution: The use of combinational loops has long been discouraged because this can cause significant stability and reliability problems in a design. The combinational loop behavior is usually dependent on the relative propagation delays of the ...
The DOPAD_DEL is the delay from the PADDO port to the IOPAD signal switching rail to rail and measured at mid point. It is dependent on several factors such as : 1. The drive strength : 8ma default 2. The slew rate. Note: As #1 and #2 increases, the ...
Description: Timing Engine in Radiant 3.11 has no timing report analysis about clock skew from same source to destination clock. This enhancement has already been updated and reported on Radiant 3.2 SP1. Solution: It can be check using the Report and ...
URL below is the Lattice Radiant Tutorial document. Navigate to page 38 for simple steps on how to use Radiant Timing Analyzer. https://www.latticesemi.com/view_document?document_id=53231