Invention Grant
- Patent Title: Data transfer coherency device and methods thereof
- Patent Title (中): 数据传输一致性设备及其方法
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Application No.: US12776281Application Date: 2010-05-07
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Publication No.: US08015329B2Publication Date: 2011-09-06
- Inventor: James M. Sibigtroth , Michael W. Rhoades , Michael C. Wood , George E. Baker
- Applicant: James M. Sibigtroth , Michael W. Rhoades , Michael C. Wood , George E. Baker
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Current Assignee Address: US TX Austin
- Main IPC: G06F13/00
- IPC: G06F13/00 ; G06F3/00 ; G06F13/14

Abstract:
Methods and a device for performing coherent access requests are disclosed. The methods include receiving a first address associated with a first write or read request. During a write operation, if the first address is associated with a coherent access register, data to be written is stored at a data latch that is connected to a plurality of coherent data access registers. A second address and second data associated with a second write request are received. If the second address matches the first address, the second data and the latched first data are written to the coherent access register. By latching the first data and simultaneously writing the latched first data and the second data, overall coherency of the written data is maintained.
Public/Granted literature
- US20100223414A1 DATA TRANSFER COHERENCY DEVICE AND METHODS THEREOF Public/Granted day:2010-09-02
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