CN201444302U

CN201444302U - SOC chip with pin capable of being configured

Info

Publication number: CN201444302U
Application number: CN2009200268448U
Authority: CN
Inventors: 姜凯
Original assignee: Langchao Electronic Information Industry Co Ltd
Current assignee: Inspur Electronic Information Industry Co Ltd
Priority date: 2009-06-04
Filing date: 2009-06-04
Publication date: 2010-04-28
Anticipated expiration: 2019-06-04

Abstract

The utility model discloses an SOC chip with the pin capable of being configured, which belongs to an SOC chip, the structure of which comprises an IP core, a pin control unit and a pin, wherein the pin is controlled by the pin control unit, the digital signal output by the IP core is accessed into a priority encoder to define priority, the pin selection signal of the pin control unit is accessed to a pin latch to be latched, and both the priority encoder and the pin latch are connected to a cross matrix module. Compared with the prior art, the configurable design of the utility model can lead the definition of the I/O port of the chip to be defined within a certain range, so the wiring of the PCB board is very convenient, thereby, the time is saved and the efficiency is improved.

Description

A kind of SOC chip of configurable pin

Technical field

The utility model relates to a kind of SOC chip, specifically a kind of SOC chip of configurable pin.

Background technology

Because the demand of information market and the development of microelectronics self, having caused with microfabrication (the integrated circuit characteristic dimension is constantly dwindled) is the kinds of processes integrated technology of principal character and the development of application oriented system level chip.SOC produces under the general orientation that integrated system (IS) changes at integrated circuit (IC) just.

The definition of SOC is varied, owing to its rich connotation, applied range, is difficult to provide accurate definition.In general, SOC is called system level chip, and the title SOC (system on a chip) is also arranged, and meaning it is a product, is an integrated circuit that application-specific target is arranged, and wherein comprises holonomic system and the full content of embedded software is arranged.It is again a kind of technology simultaneously,, divides to software/hardware from determining systemic-function in order to realization, and finishes the whole process of design.From the narrow sense angle, it is that the chip of infosystem core is integrated, is that the system core parts are integrated on the chip piece; From the broad sense angle, SOC is a mini system, if central processing unit (CPU) is a brain, SOC is exactly the system that comprises brain, heart, eyes and hand so.Both at home and abroad the general tendency of academia is defined as SOC microprocessor, Simulation with I P nuclear, digital IP kernel and storer (or sheet external memory control interface) is integrated on the one chip, its normally customization, or towards the standardized product of special-purpose.

The SOC chip is because its function is many, so can run into a lot of difficulties in the design of pcb board wiring.

The utility model content

Technical assignment of the present utility model is at above weak point, and the SOC chip of a kind of configurable pin that a kind of SOC chip pin can dispose is provided.

The technical scheme that its technical matters that solves the utility model adopts is: comprise IP kernel, pin control module and pin, pin is by the control of pin control module; Definition priority in the Digital signal access priority scrambler of IP kernel output, the pin of pin control module select signal by inserting the pin latches, and priority encoder and pin latch all are connected to crossing matrix modules.

The course of work of the SOC chip of a kind of configurable pin of the present utility model is:

1, the Digital signal of each IP kernel output of SOC defines priority by priority encoder;

2, the pin of pin control module selects signal by the pin latches;

3, the information of priority encoder and pin latch is sent into crossing matrix modules;

4, crossing matrix modules is determined the pin positions of each Digital signal correspondence according to the pin of the Digital priority class of traffic of priority encoder definition and pin latches.

The SOC chip of a kind of configurable pin of the present utility model is compared with prior art, the configurable design of SOC pin then makes the definition of chip I/O mouth to define freely within the specific limits, therefore can be very convenient in the placement-and-routing of pcb board, thus the time saved, improved efficient; Thereby, have good value for applications.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further specified.

Accompanying drawing 1 is a kind of circuit structure block diagram of SOC chip of configurable pin.

Among the figure: 1, IP kernel; 2, priority encoder; 3, crossing matrix modules; 4, pin control module; 5, pin; 6, pin latch.

Embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

The SOC chip of a kind of configurable pin of the present utility model, its structure comprise IP kernel 1, pin control module 4 and pin 5, and pin 5 is by 4 controls of pin control module; Definition priority in the Digital signal access priority scrambler 2 of IP kernel 1 output, the pin of pin control module 4 select signal to latch by inserting pin latch 6, and priority encoder 2 all is connected to crossing matrix modules 3 with pin latch 6.

1, the Digital signal (as serial ports controller signal, timer signal, 12C bus controller signal, spi bus controller signals, system clock module signal etc. among the figure) of each IP kernel 1 output of SOC is by priority encoder 2 definition priority;

2, the pin of pin control module 4 (a plurality of pins are arranged) selects signal to latch by pin latch 6;

3, the information of priority encoder 2 and pin latch 6 is sent into crossing matrix modules 3;

4, the pin 5 that latchs according to the Digital priority class of traffic and the pin latch 6 of priority encoder 2 definition of crossing matrix modules 3 is determined the pin positions of each Digital signal correspondence.

Therefore, each pin 5 can be according to demand, its output Digital signal of definition configuration.Thereby can make that the wiring of pcb board is more flexible.

Except that the described technical characterictic of instructions, be the known technology of those skilled in the art.

Claims

1. the SOC chip of a configurable pin, comprise IP kernel, pin control module and pin, pin is by the control of pin control module, the interior definition of the Digital signal access priority scrambler priority that it is characterized in that IP kernel output, the pin of pin control module selects signal by inserting the pin latches, and priority encoder and pin latch all are connected to crossing matrix modules.