Invention Grant
- Patent Title: System and method of reducing the rate of interrupts generated by a device in microprocessor based systems
- Patent Title (中): 降低微处理器系统中设备产生的中断速率的系统和方法
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Application No.: US11010992Application Date: 2004-12-13
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Publication No.: US07899956B2Publication Date: 2011-03-01
- Inventor: Nelson Sollenberger , Yan Zhang
- Applicant: Nelson Sollenberger , Yan Zhang
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: McAndrews, Held & Malloy, Ltd.
- Main IPC: G06F3/00
- IPC: G06F3/00 ; G06F13/24 ; G06F9/00

Abstract:
Herein described are at least a system and a method of reducing or decreasing the rate of interrupts transmitted by a device to a microprocessor. In a representative embodiment, the device comprises a universal asynchronous receiver/transmitter. In a representative embodiment, the rate of interrupts is reduced by receiving and using a first signal as an input to a first counter. The first counter outputs a first count, and compares the first count to a value provided by a memory. Subsequently, a second signal is generated to initiate an interrupt when the first count equals the value. In a representative embodiment, a system for delaying transmission of an interrupt from a universal asynchronous receiver/transmitter (UART) to a microprocessor comprises a counter capable of generating a count, a memory capable of storing a value, and a comparator used for comparing the count to the value.
Public/Granted literature
Information query