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| MC68HC908MR8 Datasheet, PDF (305/372 Pages) Motorola, Inc – Microcontrollers | |||
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Technical Data â MC68HC908MR8
Section 17. Low-Voltage Inhibit (LVI)
17.1 Contents
17.2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .305
17.3 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .305
17.4 Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . .306
17.4.1 Polled LVI Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . .307
17.4.2 Forced Reset Operation. . . . . . . . . . . . . . . . . . . . . . . . . .307
17.4.3 False Reset Protection. . . . . . . . . . . . . . . . . . . . . . . . . . .307
17.4.4 LVI Trip Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .308
17.5 LVI Status and Control Register . . . . . . . . . . . . . . . . . . . . .308
17.6 LVI Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .309
17.7 Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .309
17.8 Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .309
17.2 Introduction
This section describes the low-voltage inhibit (LVI) module, which
monitors the voltage on the VDD pin and can force a reset when the VDD
voltage falls to the LVI trip voltage.
17.3 Features
Features of the LVI module include:
⢠Programmable LVI reset
⢠Programmable power consumption
⢠Digital filtering of VDD pin level
⢠Selectable LVI trip voltage
MC68HC908MR8 â Rev 4.1
Freescale Semiconductor
Low-Voltage Inhibit (LVI)
Technical Data
305
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