What tools should I use to design code for the CPLD within the POWR1220AT8, and is there any documentation recommended?
The programming file (.jed) for CPLD within the POWR1220AT8 can only be generated using the PAC-Designer tool.
Here is the direct link: http://www.latticesemi.com/en/Products/DesignSoftwareAndIP/MixedSignalDS/PacDesigner
Inside this tool, designers have two options:
1. Use the easy LogiBuilder interface.
2. Use the ABEL window (see application note AN6052 http://www.latticesemi.com/view_document?document_id=6546).