during normal system operation, and should be tied to Vcc through resistors:
Several input pins are unused during normal system operation, and should be tied to Vss through 100 ohm resistors:
Several input pins are unused during normal system operation, and should be tied to Vss:

The following input pins may be unused in certain system configurations, and each of them should be tied to VccQSys, preferably, through a resistor of 100 ohms or greater value:
The following input pins may be unused in certain system configurations, and each of them should be tied to Vss, preferably, through a resistor of 100 ohms or greater value:
- SysRdRdy*
- SysWrRdy*
- SysGblPerf*
- SysCyc*
The following input pins may be unused in certain system configurations, and each of them should be tied (preferably) to Vss, or VccQSys, through a resistor of 100 ohms or greater value: