Invention Grant
- Patent Title: Interrupt management system for deferring low priority interrupts in real-time system
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Application No.: US14809269Application Date: 2015-07-26
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Publication No.: US09772963B2Publication Date: 2017-09-26
- Inventor: Priyanka Jain , Girraj K. Agrawal , Rajan Srivastava
- Applicant: FREESCALE SEMICONDUCTOR, INC.
- Applicant Address: US TX Austin
- Assignee: NXP USA, INC.
- Current Assignee: NXP USA, INC.
- Current Assignee Address: US TX Austin
- Agent Charles E. Bergere
- Main IPC: G06F13/00
- IPC: G06F13/00 ; G06F13/32 ; G06F9/48

Abstract:
An interrupt management system for managing multiple interrupts includes a timer and an interrupt management sub-system. The interrupt management sub-system receives first and second interrupts, determines the first interrupt to be a real-time interrupt and the second interrupt to be a non-real-time interrupt, initializes the timer for a predetermined time period on reception of the first interrupt, and determines whether the second interrupt is either a maskable or non-maskable interrupt. The interrupt management sub-system transmits the first interrupt to an interrupt controller, en-queues the second interrupt during the predetermined time period, and transmits the second interrupt to the interrupt controller after the predetermined time period when the second interrupt is a maskable interrupt. The interrupt management sub-system transmits the second interrupt to the interrupt controller during the predetermined time period when the second interrupt is a non-maskable interrupt.
Public/Granted literature
- US20170024342A1 INTERRUPT MANAGEMENT SYSTEM FOR DEFERRING LOW PRIORITY INTERRUPTS IN REAL-TIME SYSTEM Public/Granted day:2017-01-26
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