Intelligent power supervisor
First Claim
1. A system that includes circuitry, comprising:
- a power supervisor coupled to a power supply voltage, wherein the power supervisor includes;
a memory configured to store instructions for asserting a reset output signal to reset the circuitry in response to a reset comparison between a reference voltage and a programmable threshold voltage;
a programmable voltage divider configured to provide the programmable threshold voltage as a voltage divided output in response to instructions from the memory; and
a programmable reset time module configured to control a time characteristic of the reset output signal.
2 Assignments
0 Petitions
Accused Products
Abstract
An intelligent power-on reset circuit in accordance with one embodiment of the invention can include a programmable voltage divider. The intelligent power-on reset circuit can also include a comparator that is coupled to the programmable voltage divider and that is coupled to receive a reference voltage. Furthermore, the intelligent power-on reset circuit can include a processing element that is coupled to the programmable voltage divider. The processing element can be coupled to receive programming for controlling a characteristic of the intelligent power-on reset circuit. The processing element can be for dynamically changing the programming during operation of the intelligent power-on reset circuit.
-
Citations
22 Claims
-
1. A system that includes circuitry, comprising:
a power supervisor coupled to a power supply voltage, wherein the power supervisor includes; a memory configured to store instructions for asserting a reset output signal to reset the circuitry in response to a reset comparison between a reference voltage and a programmable threshold voltage; a programmable voltage divider configured to provide the programmable threshold voltage as a voltage divided output in response to instructions from the memory; and a programmable reset time module configured to control a time characteristic of the reset output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 19, 21)
-
11. A system that includes circuitry, comprising:
a power supervisor coupled to a power supply voltage, wherein the power supervisor includes; a comparator; a memory configured to store instructions for asserting a reset output signal to reset the circuitry in response to a reset comparison between a reference voltage and a programmable threshold voltage made by the comparator; a programmable voltage divider configured to provide the programmable threshold voltage as a voltage divided output in response to instructions from the memory; and a programmable reset time module configured to control a time characteristic of the reset output signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 20, 22)
Specification