mc68hc908mr32 Freescale Semiconductor, Inc, mc68hc908mr32 Datasheet - Page 113
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mc68hc908mr32
Manufacturer Part Number
mc68hc908mr32
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908MR32.pdf
(282 pages)
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Chapter 11
Power-On Reset (POR)
11.1 Introduction
This section describes the power-on reset (POR) module.
11.2 Functional Description
The POR module provides a known, stable signal to the microcontroller unit (MCU) at power-on. This
signal tracks V
until the MCU generates a feedback signal to indicate that it is properly initialized. At
DD
this time, the POR drives its output low.
The POR is not a brown-out detector, low-voltage detector, or glitch detector. V
at the POR must go
DD
completely to 0 to reset the microcontroller unit (MCU). To detect power-loss conditions, use a low-voltage
inhibit module (LVI) or other suitable circuit.
MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1
Freescale Semiconductor
113
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