Cirrus Logic Inc.

Sanjiv D Pathak

Jihad Y Abudayyeh

Stephen A Smith

Sriram Ramamurthy

Kasturiraman Gopalaswamy

Jafar Naji

Reza G Omid

A method and circuit to regulate a random waveform signal to ensure that the LED indicator driven by the waveform signal is visible to the human eye is provided. The method and circuit first determines whether there is a pulse occurring. If an on-going pulse is detected, the regulated waveform signal is driven HIGH for at least 8 clock cycles. If no on-going pulse is detected, the regulated waveform signal is driven LOW for at least 8 clock cycles.

Apparatus and method for shaping random waveforms

A peripheral device capable of generating interrupt request signals compliant with the Industry Standard Architecture (ISA) protocol, and the Peripheral Component Interconnect (PCI) protocol. The peripheral device comprises a signal generator block which selectively generates either the interrupt request signals of the PCI protocol or a set of bits representative of interrupt request signals of the ISA protocol. The set of bits are transferred serially to a converter circuit which generates the interrupt request signals of the ISA protocol based on the bits. The signal generator block generates bits in such a way as to support both pulse mode and level mode interrupt request signals for the ISA protocol.

Apparatus and method for supporting multiple interrupt protocols with

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Fremont, CA, United States of America

Sanjiv D Pathak