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Micro controller IP nucleus

A microcontroller and controller technology, applied in the field of microcontrollers, can solve the problems of large scale and high cost

Inactive Publication Date: 2004-06-30
成都三零嘉微电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the scale of this structure is very large and the cost is much higher

Method used

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  • Micro controller IP nucleus
  • Micro controller IP nucleus
  • Micro controller IP nucleus

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Embodiment Construction

[0024] The instruction set architecture of the microcontroller IP core of the present invention is fully compatible with the MCS51 structure, including data memory, program memory, special function register group, register control and addressing and program counter, input and output ports, and serial communication ports , timing counter, arithmetic logic unit, interrupt controller, specifically: an 8-bit central processing unit (CPU), a bit processor with bit addressing function and suitable for Boolean processing, 64K program addressing space, 64K data addressing space, 8K bytes of on-chip program memory, 256 bytes of on-chip data memory, three 16-bit timer / counters, one full-duplex serial port, and an interrupt structure with 6 interrupt sources with 2 priorities, It is characterized in that: said one 8-bit instruction with MCS51 instruction set architecture is completed within 4 or 8 clock cycles.

[0025]The working process of the microcontroller IP core of the present inv...

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Abstract

The invention refers to a kind of micro-control technology, especially a microcontroller IP core which has 8 bits, MCS51 instructions structure, which includes data memory, program memory, special function resister group, resister control and addressing, program counter, I / O ports, series communication port, timing counter, arithmetic logic unit, interruption controller. The character lies in: the instruction in 8 bits, MCS51 instructions structure is accomplished in 4 or 8 clock periods.

Description

Technical field: [0001] The invention relates to micro-control technology, in particular to an 8-bit micro-controller IP core with MCS51 instruction set architecture. Background technique: [0002] A microcontroller (Microcontroller) refers to the integration of a central processing unit (CPU), a read-only memory (ROM), a random access memory (RAM) and an input / output (I / O) interface on a silicon chip to execute data stored in the read-only memory. (ROM) to realize its control function. Therefore, in order to realize a specific control function, it is not necessary to go deep into the details of hardware implementation, and only need to write a program in software form and store it in the memory. Microcontrollers can realize a variety of complex control functions, and are widely used in digital systems, especially in the field of industrial control and embedded systems. The instruction set architecture (Instruction Set Architecture) refers to the collection of all instruct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/22G06F9/34
Inventor 杨鹤吕永其虞睿
Owner 成都三零嘉微电子有限公司
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