Part # ADUC7019 AD7020 AD7021 AD7022 AD7024 AD7025 AD7026 AD7027 AD7028ANOMALY datasheet

Part Manufacturer: Analog Devices

Analog Devices

Part Description: ADuC7019/ADuC702x Precision Analog Microcontroller12-Bit ADCs and DACs ARM7TDMI Core Anomaly Data Sheet (Rev. D)

Part Details:

Precision Analog Microcontroller 12-Bit ADCs and DACs, ARM7TDMI® Core Silicon Anomaly List ADuC7019/ADuC702x This anomaly list describes the known bugs, anomalies, and workarounds for the ADuC7019/ADuC702x MicroConverter®. The anomalies listed apply to all ADuC7019/ADuC702x packaged material branded as follows: First Line ADuC7019 or ADuC702x (where: x = 0 to 8) Third Line I31 (revision identifier) or Third Line I51 (revision identifier) Analog Devices, Inc. is committed, through future silicon revisions, to continuously improve silicon functionality. Analog Devices tries to ensure that these future silicon revisions remain compatible with your present software/systems by implementing the recommended workarounds outlined here. ADuC7019/ADuC702x FUNCTIONALITY ISSUES Silicon Kernel Revision Revision Silicon Identifier Identifier Chip Marking Status Anomaly Sheet No. of Reported Anomalies All silicon branded Release Rev. D 3 I31 or I51 Rev. D Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. or otherwise under any patent or patent rights of Analog Devices. Trademarks and Tel: 781.329.4700 registered trademarks are the property of their respective owners. Fax: 781.461.3113 ©2007 Analog Devices, Inc. All rights reserved. ADuC7019/ADuC702x ANOMALIES ADuC7019/ADuC702x Functionality Issues 1. ADC Conversion Start Mode [er017]: Background: ADCCON[2:0] allow the user to select one of six ADC conversion start modes of operation, namely: · External pin (P2.0) triggered ADC conversion · Timer1 overflow · Timer0 overflow · Single software conversion · Continuous software conversion · PLA triggered ADC conversion Issue: The active-low, external pin (P2.0) triggered conversion is always active, even if it is not selected via ADCCON[2:0]. This is the case if the function of P2.0 is configured as a CONVSTART input or if P2.0 is configured as any other function, for example, SOUT, PLAO[5], or GPIO. This means that if a falling edge is seen on P2.0, a single ADC conversion is triggered if ADCCON[7] is enabled. If an ADC conversion cycle is already in progress, this conversion stops, and a new ADC conversion cycle begins in response to a falling edge on P2.0. Workaround: Pending.

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ADUC7019 AD7020 AD7021 AD7022 AD7024 AD7025 AD7026 AD7027 AD7028ANOMALY.pdf Datasheet