Micro-controller having USB control unit, MC unit and...

Details Micro-controller having USB control unit, MC unit and... Micro-controller having USB control unit, MC unit and...

2005-06-17

2008-08-05

Suryawanshi, Suresh K (Department: 2115)

Electrical computers and digital processing systems: support

Clock, pulse, or timing signal generation or analysis

C713S600000, C710S018000

Reexamination Certificate

active

07409573

ABSTRACT:
A micro-controller includes a USB control unit, an MC unit having an operation mode and a stop mode and an oscillating circuit, which is commonly used by the USB control unit and the MC unit. The USB control unit includes a watching circuit for watching a condition of a first data and a second data, which is complement data of the first data. The operation of the oscillating circuit is controlled in response to an operation control signal, which is generated by a watching result, and an oscillation control signal whose voltage level is changed in response to the mode of the MC unit.

REFERENCES:
patent: 5586308 (1996-12-01), Hawkins et al.
patent: 6085325 (2000-07-01), Jackson et al.
patent: 6272644 (2001-08-01), Urade et al.
patent: 6467042 (2002-10-01), Wright et al.

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