mc68hc708mp16 Freescale Semiconductor, Inc, mc68hc708mp16 Datasheet - Page 365

• Manufacturer Part Number: mc68hc708mp16
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Technical Data — MC68HC708MP16
20.1 Contents
20.2 Introduction
20.3 Functional Description
MC68HC708MP16
Freescale Semiconductor
—
Rev. 3.1
20.2
20.3
This section describes the power-on reset (POR) module (Version B).
The POR module provides a known, stable signal to the MCU at power-
on. This signal tracks V
indicate that it is properly initialized. At this time, the POR drives its
output low. The POR is not a brown-out detector, low-voltage detector,
or glitch detector. V
the MCU. To detect power-loss conditions, use a low voltage inhibit
module (LVI) or other suitable circuit. Inputs to the POR_B00 are
SIMINIT and SECZDET from the SIM and EPROM security circuits,
respectively.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .365
Power-On Reset (POR)
Section 20. Power-On Reset (POR)
DD
at the POR must go completely to zero to reset
DD
until the MCU generates a feedback signal to
Technical Data
365