Apparatus for communicating another device

Patent metadata

Field	Value
Publication number	US-9106329-B2
Application number	US-201213349538-A
Country	US
Kind code	B2
Filing date	Jan 12, 2012
Priority date	Jan 31, 2011
Publication date	Aug 11, 2015
Grant date	Aug 11, 2015

Abstract

A semiconductor chip comprises an internal clock circuit, a first phase shift device, a second phase shift device, a multiplexer, a first output pad, and a controllable pad. The internal clock circuit generates an internal clock signal. The first phase shift device shifts the phase of an external clock signal and outputs a phase shifting clock signal. The multiplexer selectively outputs one of the internal clock signal and the phase shifting clock signal to be a first clock signal. The second phase shift device shifts the phase of the first clock signal and outputs a second clock signal. The first output pad outputs the first clock signal. The controllable pad is controlled to selectively act as an input pad for receiving the external signal, or act as a second output pad for transmitting the second clock signal.

First claim

What is claimed is:

1. A semiconductor chip which is capable of mounting on a printed circuit board, comprising:
a signal generating circuit for generating a first signal, a second signal and a third signal;
a first output node for transmitting the first signal;
a second output node for transmitting the second signal; and
a third output node for transmitting the third signal;
wherein the second output node is utilized for connecting a terminator device mounted on the print…

Assignees

• Liou Ming-Luen
• Chiou Rong-Liang
• Mediatek Inc

Inventors

• Liou Ming-Luen
• Chiou Rong-Liang

Classifications

• G06F1/06

  Physics · mapped topic

• G06F13/4086

  Physics · mapped topic

• H03K19/00346

  Electricity · mapped topic

• H03K17/16

  Electricity · mapped topic

• G06F1/04 Primary

  Physics · mapped topic