PROGRAMMABLE SYSTEM ON A CHIP
First Claim
1. A method of powering up a programmable system-on-a-chip including a programmable logic circuit block and an analog circuit block, the method comprising:
- ramping up a vcc voltage;
producing a bandgap-good signal when the bandgap reference circuit is outputting a predetermined bandgap voltage;
comparing a digital circuit voltage to the bandgap voltage to determine whether the digital circuit voltage has reached a predetermined threshold;
if the digital circuit voltage has reached a predetermined threshold, determining whether the programmable logic block is functional;
if the programmable logic block is functional, initializing and configuring digital circuits of the programmable system-on-a-chip;
comparing an analog circuit voltage to the bandgap voltage to determine whether the analog circuit voltage has reached a predetermined threshold;
if the analog circuit voltage has reached a predetermined threshold, calibrating an analog-to-digital converter.
6 Assignments
0 Petitions
Accused Products
Abstract
A programmable system-on-a-chip integrated circuit device comprises a programmable logic block, a non-volatile memory block, an analog sub-system, an analog input/output circuit block, and a digital input/output circuit block. A programmable interconnect architecture includes programmable elements and interconnect conductors. Ones of the programmable elements are coupled to the programmable logic block, the non-volatile memory block, the analog sub-system, the analog input/output circuit block, the digital input/output circuit block, and to the interconnect conductors, such that inputs and outputs of the programmable logic block, the non-volatile memory block, the analog sub-system, the analog input/output circuit block, and the digital input/output circuit block can be programmably coupled to one another.
68 Citations
1 Claim
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1. A method of powering up a programmable system-on-a-chip including a programmable logic circuit block and an analog circuit block, the method comprising:
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ramping up a vcc voltage; producing a bandgap-good signal when the bandgap reference circuit is outputting a predetermined bandgap voltage; comparing a digital circuit voltage to the bandgap voltage to determine whether the digital circuit voltage has reached a predetermined threshold; if the digital circuit voltage has reached a predetermined threshold, determining whether the programmable logic block is functional; if the programmable logic block is functional, initializing and configuring digital circuits of the programmable system-on-a-chip; comparing an analog circuit voltage to the bandgap voltage to determine whether the analog circuit voltage has reached a predetermined threshold; if the analog circuit voltage has reached a predetermined threshold, calibrating an analog-to-digital converter.
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Specification