Invention Grant
US08593902B2 Controller and access method for DDR PSRAM and operating method thereof
有权
DDR PSRAM的控制器和访问方法及其操作方法
- Patent Title: Controller and access method for DDR PSRAM and operating method thereof
- Patent Title (中): DDR PSRAM的控制器和访问方法及其操作方法
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Application No.: US13311352Application Date: 2011-12-05
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Publication No.: US08593902B2Publication Date: 2013-11-26
- Inventor: Chih-Hsin Lin , Tsung-Huang Chen , Bing-Shiun Wang , Jen-Pin Su
- Applicant: Chih-Hsin Lin , Tsung-Huang Chen , Bing-Shiun Wang , Jen-Pin Su
- Applicant Address: TW Hsin-Chu
- Assignee: Mediatek Inc.
- Current Assignee: Mediatek Inc.
- Current Assignee Address: TW Hsin-Chu
- Agency: McClure, Qualey & Rodack, LLP
- Main IPC: G11C8/16
- IPC: G11C8/16 ; G11C7/10
Abstract:
A controller for a DDR PSRAM is provided. The controller includes a single rate processing unit, a double rate processing unit and a selector. The signal rate processing unit obtains a single data rate data according to a first data and a first clock. The double rate processing unit obtains a double data rate data according to a second data and a second clock that is two times the frequency of the first clock. The selector selectively provides any of the single data rate data and the double data rate data to the DDR PSRAM via a common bus according to a control signal.
Public/Granted literature
- US20130058174A1 CONTROLLER AND ACCESS METHOD FOR DDR PSRAM AND OPERATING METHOD THEREOF Public/Granted day:2013-03-07
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