A SoC system

A technology of dedicated bus and micro-control unit, applied in the field of SoC system, can solve problems such as inability to realize functions, and achieve the effect of strong programming and control functions

Pending Publication Date: 2019-03-29
京微齐力(深圳)科技有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] For general SoCs, the number of SFRs will be determined according to the needs during design, so that the number and functions of S

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Embodiment Construction

[0014] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0015] It should be noted that, the embodiment of the present invention takes the 8051 single-chip microcomputer as an example, but it is not limited to the 8051 single-chip microcomputer, and can be any applicable MCU.

[0016] The existing 8051 single-chip microcomputer has a 4KB program storage unit, and its address is 0000H-0FFFH. Among them, the address units from 80H-FFH (also 128 bytes) are SFR units, and the internal data storage area stores up to 128 SFRs. The 21 SFRs available in the 8051 MCU are discontinuously distributed in 128-byte SFR units, and users of SFRs in other vacant addresses cannot read and write.

[0017] In order to expand the vacant address in the SFR unit in the existing 8051 microcontroller, the application proposes figure 1 An SoC system is shown, which includes: a m...

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Abstract

The invention provides a SoC system, which comprises a field programmable gate array FPGA and a micro control unit MCU. The MCU comprises a special function register SFR unit; The MCU is connected with the FPGA for mapping the spare address in the SFR unit into the FPGA and extending the SFR in the FPGA. The FPGA is added to that present application, Based on the programmable principle of FPGA, The free address in SFR unit is mapped to FPGA to form a new usable SFR in FPGA, which expands the number and function of SFR in MCU system, can allow the SoC system to expand SFR according to the actual application requirements, and makes the programming and control function of SoC system stronger and more flexible.

Description

technical field [0001] The invention relates to computer storage technology, in particular to a SoC system. Background technique [0002] With the development of computer technology, Microcontroller Unit (MCU) has developed rapidly. In the MCU system, the special function register (Special Function Register, SFR) is the register corresponding to each functional part in the MCU system, which is used to dynamically store some status information of the computer running process, and is used to control and manage the MCU system according to the status information. Arithmetic logic components, parallel serial I / O ports, Timer / counter interrupt system and other functions. For example, in the P0-P3 port, the timer / counter T0, T1, TMOD, TCON, PCON, SCON, PSW, IE, A, B, IP, etc. are all SFRs. [0003] SFR is the most special part in the MCU system, and the increase and expansion of existing System on Chip (SoC) functions are almost all realized by adding SFR. Therefore, the more SF...

Claims

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Application Information

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IPC IPC(8): G06F15/78
CPCG06F15/7807
Inventor 周清睿王海力
Owner 京微齐力(深圳)科技有限公司
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