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Analog-to-Digital Conversion Using Microdecode Sequencer

A technology of sequencer and digital conversion, which is applied in the field of analog/digital conversion modules, and can solve the problem that the steps of the hard decoding sequencer cannot be changed.

Active Publication Date: 2021-03-30
MICROCHIP TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no way to change the steps in the hard-coded sequencer to correct errors or incorporate improvements into the process

Method used

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  • Analog-to-Digital Conversion Using Microdecode Sequencer
  • Analog-to-Digital Conversion Using Microdecode Sequencer
  • Analog-to-Digital Conversion Using Microdecode Sequencer

Examples

Experimental program
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Embodiment Construction

[0022] According to various embodiments of the present invention, a microdecode sequencer may be used to provide complete Complex conversion sequences. By making the sequencer microcoded, new process steps can be added and existing process steps updated.

[0023] Such a programmable sequencer in combination with an analog-to-digital conversion module (such as, but not limited to, an analog-to-digital converter (ADC) and / or a charge time measurement unit (CTMU)) and digital processing (e.g., computation) circuitry can Configured to work independently of CPU cores. Thus, the microdecode sequencer, which controls the analog-to-digital conversion and subsequent digital processing, provides self-contained operation in the low power mode when the CPU and / or other high power consuming modules are in the low power sleep mode. This peripheral device can perform data collection and its processing, and then wake up the CPU only when needed, thereby saving power. Furthermore, this peri...

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PUM

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Abstract

A microdecode sequencer controls complex conversion sequences independently of the central processing unit CPU. Microcoding enables easy addition of new process steps and / or updating of existing process steps. This programmable sequencer, in combination with an analog-to-digital conversion module such as an analog-to-digital converter ADC or a charge time measurement unit CTMU, and digital processing circuitry can be configured to interface with the microdecoding sequencer independently of the CPU Work in combination. This provides self-contained operation in low power mode while the CPU and other high power modules are in low power sleep mode. This peripheral can perform data collection and its processing, then wake up the CPU only when needed, thereby saving power. Furthermore, this peripheral requires no CPU processing so that time-critical applications that do need to be under the control of the CPU can operate more efficiently and with less operational overhead burden.

Description

[0001] Related patent applications [0002] This application claims priority to commonly-owned US Provisional Patent Application No. 62 / 065,129, filed October 17, 2014, which is hereby incorporated by reference herein for all purposes. technical field [0003] The present invention relates to analog-to-digital conversion modules, and in particular to analog-to-digital conversion modules combined with microdecode sequencers. Background technique [0004] The analog-to-digital conversion (specifically, the analog-to-digital conversion module embedded in the microcontroller) is usually under software control of a corresponding central processing unit (CPU) core of the microcontroller. These A / D conversion modules have limited operation in low power modes such as sleep and idle when the CPU is inactive. In some applications, the A / D module needs to interact with other microcontroller peripheral functions (such as storage registers, accumulators, multiplexers, sample and hold c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03K17/96H03M1/12
CPCH03K17/9622H03M1/1245H03K2217/960725H03M1/50G06F1/32H03M1/002H03M1/1225H03M1/00H03M1/12
Inventor 詹姆士·E·巴特林伊戈尔·沃耶沃达凯文·基尔策
Owner MICROCHIP TECH INC