3614 - iCE40 LP/HX: Does the GBIN[n] pin directly drive the GBUF[n]?
3614 - iCE40 LP/HX: Does the GBIN[n] pin directly drive the GBUF[n]?
GBIN[n] doesn't drive GBUF[n] directly. iCECube2 will automatically place it at the right location depending upon the package and type of net such as clock, reset, enable.
Description: No, only the Tx PLL half/full rate clocks in channel 0 of each SERDES quad may drive the primary clock routing directly. Eight primary clocks(CLK0~CLK7) may be used for LatticeECP3 devices. To drive the primary clock routing directly: ...
The JTAG ENABLE pin of MachXO2 is an optional input pin that can be used to control the function of the ispJTAG port during user mode. By default, the JTAGENB pin is a user I/O while the 4-wire ispJTAG port is used as a dedicated programming port. ...
Solution: There is no recommended value for pull-up resistor on the user I/O pin, as it depends on the purpose of using the pin. If the pullup is to avoid keeping a pin floating, then any pull-up value is fine unless power is a requirement. In such ...
Yes, can do this for the for the LatticeECP2/M, LatticeECP3, and LatticeSC/M FPGA devices. If you have a Primary clock signal that you also want to use to drive an edge clock, use the "PRIMARY2EDGE" preference. This will insure that the software ...