Reset Generator - Rabbit RabbitCore RCM3100 User Manual

C-programmable module

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Distributor of Digi International: Excellent Integrated System Limited

Datasheet of 101-0533 - KIT DEV RABBIT3000/RCM3100

The drain on the battery by the RCM3100 is typically 7.1 µA when no other power is sup-

plied. If a 165 mA·h battery is used, the battery can last almost 3 years:

The actual life in your application will depend on the current drawn by components not on

the RCM3100 and the storage capacity of the battery. The RCM3100 does not drain the

battery while it is powered up normally.

Cycle the main power off/on on the RCM3100 after you install a backup battery for the

first time, and whenever you replace the battery. This step will minimize the current drawn

by the real-time clock oscillator circuit from the backup battery should the RCM3100

experience a loss of main power.

D.1.2 Reset Generator

The RCM3100 uses a reset generator to reset the Rabbit 3000 microprocessor when the volt-

age drops below the voltage necessary for reliable operation. The reset occurs between

2.55 V and 2.70 V, typically 2.63 V. The RCM3100 has a reset output, pin 1 on header J2.

165 mA·h

----------------------- -

2.7 years.

7 µA

RabbitCore RCM3100

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