Invention Grant
- Patent Title: Semiconductor integrated circuit device and data processor system
- Patent Title (中): 半导体集成电路器件和数据处理器系统
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Application No.: US12020418Application Date: 2008-01-25
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Publication No.: US08018447B2Publication Date: 2011-09-13
- Inventor: Shusaku Miyata , Hirofumi Sonoyama
- Applicant: Shusaku Miyata , Hirofumi Sonoyama
- Applicant Address: JP Kawasaki-shi
- Assignee: Renesas Electronics Corporation
- Current Assignee: Renesas Electronics Corporation
- Current Assignee Address: JP Kawasaki-shi
- Agency: Miles & Stockbridge P.C.
- Priority: JP2007-035693 20070216
- Main IPC: G09G5/00
- IPC: G09G5/00 ; G09G3/36

Abstract:
To provide an input interface technique of display data which can contribute to improvement of reliability and high performance of a system in which a semiconductor integrated circuit device including a RAM and a display driver circuit is incorporated. A semiconductor integrated circuit device includes a first high-speed serial interface circuit which has one differential serial data channel and a second high-speed serial interface circuit which has a plurality of differential serial data channels, the first high-speed serial interface circuit performs interface with the outside for control information, and a control circuit performs an internal operation on the basis of the control information. Both of the high-speed serial interface circuits share a RAM for storage of display data information. Whether the data information to be supplied to the RAM is received by using the first high-speed serial interface circuit or the second high-speed serial interface circuit is determined by the control circuit in accordance with the control information that is input to the first high-speed serial interface circuit.
Public/Granted literature
- US20080198148A1 SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE AND DATA PROCESSOR SYSTEM Public/Granted day:2008-08-21
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