Serial interface controller supporting multiple transport protocols and control method

A serial interface and transmission protocol technology, applied in the computer field, can solve problems such as inability to realize synchronous serial interface devices

Active Publication Date: 2009-12-09
LENOVO (BEIJING) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as mentioned above, due to the limited area of ​​the chip, if multiple physical interface controllers are used to control the synchronous serial interface that follows different transmission protocols,

Method used

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  • Serial interface controller supporting multiple transport protocols and control method
  • Serial interface controller supporting multiple transport protocols and control method
  • Serial interface controller supporting multiple transport protocols and control method

Examples

Experimental program
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Embodiment Construction

[0023] The specific implementation manners of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] There are many ways to classify serial communication protocols: asynchronous start-stop protocol, binary synchronous communication protocol, bit-oriented synchronous protocol, etc., but their processing logic flow has commonality (the transmission flow is as follows figure 2 shown).

[0025] In the start-stop asynchronous protocol, data transmission is character by character, starting with the start bit and ending with the stop bit, and there is no fixed time interval requirement between characters. There is a start bit (low level, logic value 0) in front of each character, and the character itself is composed of 5 to 7 data bits, followed by a check bit (or no check bit), The last bit, or one and a half, or two bits is a stop bit, and the stop bit is followed by an idle bit of indeterminate length.

[0026] In the synch...

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PUM

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Abstract

The invention discloses a serial interface controller supporting multiple transport protocols, a control method and a computer supporting multiple transport protocols. The serial interface controller comprises a parameter storage unit, a variety setting unit, a bus data transport unit and a control logic processing unit, wherein the parameter storage unit is used for storing the information of control parameters of all the transfer protocols supported by the interface controller; the variety storage unit is used for setting the transport protocol variety abided by a serial interface to be controlled by the controller and generating transport protocol variety setting information; the bus data transport unit is used for transporting data between data processing equipment and the serial interface; the control logic processing unit is used for acquiring control parameter information which corresponds to the transport protocol variety setting information from the parameter storage unit according to the transport protocol variety setting information and controlling the serial interface according to the acquired control parameter information. The functions of a plurality of transport protocols following multiple transport protocols can be fulfilled by one physical serial interface.

Description

technical field [0001] The invention relates to the field of computers, and more specifically relates to a serial interface controller and a control method supporting multiple transmission protocols. Background technique [0002] With the in-depth development of digitalization of electronic equipment and the rapid development of integrated circuit technology, the scale of integrated circuit chips is getting larger and larger. [0003] The serial interface is widely used in large-scale integrated circuits, especially in SOC chips. However, the area of ​​the chip is limited and the pin resources are limited. Therefore, it is very important for the design of the SOC chip to realize a function that can support multiple serial protocols, reuse the same circuit, and realize the most functions with the least chip pins. [0004] Currently, there is a synchronous serial interface device capable of implementing multiple transmission protocols through multiple physical serial interfac...

Claims

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Application Information

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IPC IPC(8): G06F13/42
Inventor 温天元谢巍
Owner LENOVO (BEIJING) CO LTD
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