Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and system for reading data from a memory

A technology of data writing and memory, applied in the direction of digital memory information, electrical digital data processing, memory address/allocation/relocation, etc.

Inactive Publication Date: 2004-06-16
S3 GRAPHICS
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the challenges of the controller 102 is to accurately time to provide the data strobe signal DQS, the data signal PD and the clock pulse signal MCLK to the memory 104, so that the data is correctly locked into the memory 104

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and system for reading data from a memory
  • Method and system for reading data from a memory
  • Method and system for reading data from a memory

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention is illustrated in detail by the following examples and accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like components.

[0032] image 3 is a circuit diagram of a control circuit according to the first specific example of the present invention. The phase locked loop (phaselocked loop) 310 provides a clock signal CLK and another clock signal CLKQ, wherein the clock signal CLKQ is 90 degrees ahead or ahead of the clock signal CLK. The clock signals CLK and CLKQ can be generated from the same reference clock signal. At node A, the clock signal CLK is sent to a clock tree buffer (CTS) 312 to form a signal CTS_CLK (not shown). The signal CTS_CLK is sent to an inverter 322 to form a signal CTS_CLK˜ (not shown) that is 180 degrees complementary to the clock signal CTS_CLK. At node B, clock signal CLKQ is sent through clock tree buffer (CTS) 314 to form signal CTS_CLKQ (...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Methods and systems consistent with this invention comprise a control circuit for reading data from a memory comprising a plurality of data channels. Such control circuits comprise at least one multiplexer, wherein the at least one multiplexer is configured to route a data strobe signal to a first number of the plurality of data channels for reading the data from the memory when the at least one multiplexer is in a first selected state, and wherein the at least one multiplexer is configured to route the data strobe signal to a second number of the plurality of data channels, wherein the second number is greater than the first number, for reading the data from the memory when the at least one multiplexer is in a second selected state. Such methods and systems may also comprise a clock for generating a data strobe signal, and a flip-flop for latching the data from the memory into the control circuit with the data strobe signal, wherein the data strobe signal does not leave the control circuit.

Description

technical field [0001] The invention relates to a method and system for writing data into memory, especially a controller circuit suitable for writing data into memory. Background technique [0002] Generally speaking, the memory controller circuit is used to regulate the reading / writing of data from / to the memory. For example, the data may come from a central processing unit (CPU). As the capacity of memory chips increases and CPUs become faster and faster, it is necessary to access data in memory chips at a higher rate. [0003] figure 1 A block diagram of the connection between the controller 102 and the memory 104 is shown. In this figure, there are four signals connected between the controller 102 and the memory 104: a clock signal (clock signal) MCLK, a data signal (data signal) PD, a command signal (command signal) CMD and a data strobe signal (data strobesignal) DQS. [0004] figure 2 A waveform diagram showing the operation of writing a signal to memory. In ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/04G06F1/06G06F12/08G06F13/16G06F13/32G11C7/10
CPCG11C2207/108G11C7/1066G11C7/106G11C7/222G11C2207/105G11C7/22G06F13/1684G11C7/1051
Inventor 洪成冠路克·彼森
Owner S3 GRAPHICS