Parallel-to-serial converter circuit, electric device, and semiconductor device
AssigneeNEC Electronics Corporation
InventorKatsuhisa Ikeuchi
Life of this patent
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Abstract
To provide a parallel-to-serial converter circuit and electric device capable of saving power consumed even though no parallel data to be transferred is supplied. A parallel-to-serial converter circuit according to the present invention includes a data converter circuit receiving RGB parallel data and dot clocks, and converting the RGB parallel data into RGB serial data in response to a multiplied clock, and a PLL circuit outputting the multiplied clock, and stopping output of the multiplied clock in response to a standby signal.
Claims17
A parallel-to-serial converter circuit, comprising:
- a data converter circuit receiving parallel data and a parallel transfer clock, and converting the parallel data into serial data in response to a parallel-to-serial conversion clock;
- and
- a PLL circuit outputting the parallel-to-serial conversion clock and stopping output of the parallel-to-serial conversion clock in response to a PLL control signal.
An electric device, comprising:
- an image data generating unit generating parallel image data;
- a parallel-to-serial conversion unit converting the parallel image data to serial image data and including a PLL circuit stopping generation of clock in response to a PLL control signal;
- and
- a display unit displaying an image based on the serial image data.
A semiconductor device, comprising:
- an image data generating unit generating parallel image data;
- and
- a parallel-to-serial conversion unit converting the parallel image data to serial image data and including a PLL circuit stopping generation of clock in response to a PLL control signal.
Dependencies are inferred from the claim text.