Invention Grant
- Patent Title: Direct memory access (DMA) unit with error detection
- Patent Title (中): 具有错误检测功能的直接存储器访问(DMA)单元
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Application No.: US14574777Application Date: 2014-12-18
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Publication No.: US09417952B2Publication Date: 2016-08-16
- Inventor: Tommi M. Jokinen , Nikhil Jain , Stephen G. Kalthoff
- Applicant: FREESCALE SEMICONDUCTOR, INC.
- Applicant Address: US TX Austin
- Assignee: FREESCALE SEMICONDUCTOR, INC.
- Current Assignee: FREESCALE SEMICONDUCTOR, INC.
- Current Assignee Address: US TX Austin
- Main IPC: G06F11/10
- IPC: G06F11/10 ; H03M13/00 ; G06F13/28 ; G06F13/40

Abstract:
Systems and methods for self-checking a direct memory access system are disclosed. These may include generating a check sum value associated with a first job of the plurality of jobs, the first job comprising a read job; if a first predetermined check value is available, comparing the first check sum value with the first predetermined check value; generating a second check sum value associated with a last job of the plurality of jobs, the last job comprising a write job; if a second predetermined check value is available, comparing the second check sum value with the second predetermined check value; and if the second predetermined check value is not available, comparing the first check sum value with the second check sum value.
Public/Granted literature
- US20160179612A1 DIRECT MEMORY ACCESS (DMA) UNIT WITH ERROR DETECTION Public/Granted day:2016-06-23
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