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: ...
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 ...
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. ...
Description: This article lists the default drive strength for different IO_TYPE for Nexus products. Solution: For Nexus products, these are the default drive strength set in Radiant SW according to the IO_TYPE, and they are applicable for both Wide ...