AR# 1453: XC7336/XC7318: "Drive Unused IO Pads on Chip" option not available for 7336, 7318
AR# 1453
XC7336/XC7318: "Drive Unused IO Pads on Chip" option not available for 7336, 7318
説明
The Design Manager "Implementation" Template has the option to "Drive Unused IO Pads on Chip", which will eliminate the need for external pullups or grounds on unused IO pins. However, the 7318 and 7336 parts are more susceptible to ground rise problems, so this option is disabled for these parts.
ソリューション
Users should connect unused IO pins to a known logic level (ground or Vcc) externally.