Re: lattice isplsi
Hi,
Yes it is possible but only in some limited casess. For example if you have bidirectional 8 bit external data bus and you need to write data from bus in internal 8-bit or less register you can use IOC registers for this. In some cases Lattice compiler recognize this situation and automatically uses IOC registers instead GLB registers.
To enable IOC registers you need to use appropriated PLSI property directives. This technique may be used only for external IO pin signals not for internal signals from GLBs.
Regards