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
Lattice Technical Support Expectation Please be advised that highest priority for Lattice Technical Support will be given to 1. Software which is not working as expected or suspected bugs. We recommend that customers use the latest software tools and ...
Lattice currently recommends the following for implementing Gigabit Ethernet interfaces: CertusPro-NX FPGAs: Use SERDES-based SGMII or RGMII Certus-NX, MachXO5-NX, and CrossLink-NX: Use RGMII These recommendations are based on updated LVDS-based ...
Glitch Fliter is used to prevent short-duration events of glitches, This is used to prevent False tripping on noise in a system. GLITCHFilter in device constraints , enables 1ns glitch filtering.
Description: Nexus device family has a default I2C slave address of 0x40 and you are allow to modify it based on your requirement. Solution: To permanently modify the I2C address, you can modify the desired value in .fea file and use the Programmer ...
Description: To understand the RTL formatting of the PCIe configuration space in the Nexus' PCIe demos, please refer to the following details. Figure 1 illustrates the initialization of the PCIe configuration space in the Nexus' demo.