System Resets

The Hornet chip will be reset when:

• Power is first applied (Power-On-Reset (POR) circuit), or a logic low level is driven on the NRES pad. This reset will be held until VDDOK = 1 and VCCOK = 1.
• The keyboard circuitry senses that the ON pad, KBI[22], and KBI[23] are all high for a 7.8ms debounce time (ON/SHIFT/CNTRL keys depressed).

1. Execute the power-up sequence if asleep,
2. Reset the CPU, and
3. Enter operating mode.