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Data processing method and device

A data processing device and data processing technology, applied in the direction of digital memory information, static memory, program/content distribution protection, etc., can solve problems such as time-consuming, and achieve the effect of reducing time

Inactive Publication Date: 2015-02-11
NOVATEK MICROELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the amount of data DATA2 to be written into the OTP memory is very large, for example, a HDCP key group consisting of 40 56-bit keys should be written into the OTP memory, or even multiple HDCP key groups should be written into the OTP Memory, the test machine takes a lot of time to write a huge amount of data DATA2 into the OTP memory

Method used

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Embodiment Construction

[0033] aforementioned figure 1 It illustrates that the time length of each period of the clock signal CLK1 is T1. In order to ensure that each bit has enough time to complete the bit writing operation, the time length T1 of each cycle of the clock signal CLK1 must be greater than the rated time length of the bit writing operation. In any case, only when a bit value has the first logical value (ie, the bit value that requires a bit write operation), the cycle time of this bit value needs the time length T1. When a bit value is the second logic value (that is, a bit value that does not need to perform a bit write operation), the cycle time with a time length T1 is obviously too much for this bit value, because this bit value does not need to be performed. bit write operation. If can shorten the transmission time that data DATA1 is passed into described circuit to be tested, and / or can shorten the operation time that data DATA2 is written into OTP memory in described circuit to...

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Abstract

The invention provides a data processing method and a data processing device. The device comprises a converting module and a control module. The method comprises the following steps of receiving a clock signal by the converting module through a pin, and determining the bit value of first data according to the time length of the corresponding period of the clock signal; determining whether to carry out bit writing operation or not by the control module according to the clock signal and the first data, so as to write the bit value into a memory.

Description

technical field [0001] The present invention relates to an electronic device, and in particular to a data processing method and device. Background technique [0002] In recent years, as consumers have higher and higher requirements for multimedia data quality, the development of multimedia data transmission interfaces has also become increasingly vigorous. When multimedia data is transmitted through a high-resolution interface, high-bandwidth digital content protection (High-Bandwidth Digital Content Protection, HDCP) is often used to prevent data from being stolen. When the user wants to watch the data protected by HDCP, he must use the playback device and the display device with built-in HDCP key. The playback device and the display device must go through a verification process of exchanging keys before they can play data smoothly. If there is a problem in the verification process, the HDCP-protected data may have problems such as reduced picture resolution, poor sound q...

Claims

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Application Information

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IPC IPC(8): G11C7/10G06F21/10
Inventor 林保言
Owner NOVATEK MICROELECTRONICS CORP