Microcontroller with a user configurable pulse width modulator

a microcontroller and user-configurable technology, applied in the field of microcontrollers, can solve the problems of inability of users to change important aspects of the pulse width modulator such as bit width or resolution, and the prior pulse width modulator found in the microcontroller cannot be concatenated or divided to establish one large pulse width modulator or a plurality of smaller bit-width pulse width modulators

Inactive Publication Date: 2002-01-17
MA EDWARD TANG KWAI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To date there have been drawbacks to the pulse width modulators incorporated into microcontroller circuitry.
Such drawbacks include the inability of the user to change important aspects of the pulse width modulator such as the bit-width or resolution.
Furthermore, prior pulse width modulators found in microcontrollers cannot be concatenated or divided to establish one large pulse width modulator or a plurality of smaller bit-width pulse width modulators.

Method used

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  • Microcontroller with a user configurable pulse width modulator
  • Microcontroller with a user configurable pulse width modulator
  • Microcontroller with a user configurable pulse width modulator

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Embodiment Construction

[0019] The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0020] An exemplary microcontroller is preferably a "high speed" 8-bit microcontroller operating at a crystal oscillator speed of up to about 33 MHZ. It is compatible with the 8051 microcontroller instruction set and offers additional hardware and firmware capabilities beyond the standard 8051 instruction set. Furthermore, the exemplary microcontroller may include an 8051-compatible high-speed microcontroller core which may have been redesigned to reduce the original 8051's 12 clocks per instruction cy...

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Abstract

A microcontroller integrated circuit incorporating a user configurable pulse width modulator. The pulse width modulator circuitry is configurable to be a single, for example 32-bit pulse width modulator, or a plurality of pulse width modulators each having a bit width that is divisible by the single 32-bit pulse width modulator (e.g., 2, 4, 8 or 16-bit pulse width modulators).

Description

BACKGROUND OF THE PRESENT INVENTION[0001] 1. Technical Field of the Invention[0002] The present invention relates to integrated circuit devices and more particularly to microcontrollers that incorporate pulse width modulation circuitry.[0003] 2. Description of Related Art[0004] The 8051 style microcontroller core is a microcontroller core that is commonly used in "embedded control" applications. The term "8051 microcontroller" hereinafter includes any microcontroller that executes, at least, a substantial portion of the well-known 8051 microcontroller instruction set. Embedded microcontrollers are frequently found in appliances (microwave ovens, toaster ovens, mixers, bread making machines), computers and computer related equipment (printers, modems, I / O cards, disk drives, scanners), automotive related devices (engine control, suspension control, diagnostics, traction control, anti-lock brakes), and manufacturing machinery (numeric control, stepper motor control, hydraulic presses,...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G06F1/025
CPCG06F1/025
Inventor MA, EDWARD TANG KWAITAYLOR, FRANK VICTOR IIIWONG, SAI BUN SAMUEL
Owner MA EDWARD TANG KWAI
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