s908ey8ad4cfjer Freescale Semiconductor, Inc, s908ey8ad4cfjer Datasheet - Page 111

• Manufacturer Part Number: s908ey8ad4cfjer
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 11
Low-Voltage Inhibit (LVI) Module
11.1 Introduction
This section describes the low-voltage inhibit (LVI) module, which monitors the voltage on the V
and can force a reset when the V
11.2 Features
Features include:
11.3 Functional Description
Figure 11-1
located in the configuration register, can alter the default conditions.
Freescale Semiconductor
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Programmable LVI reset
Programmable power consumption
3 V or 5 V selectable trip point
Setting the LVI power disable bit, LVIPWRD, disables the LVI.
Setting the LVI reset disable bit, LVIRSTD, prevents the LVI module from generating a reset.
Setting the LVI enable in stop mode bit, LVISTOP, enables the LVI to continue monitoring the
voltage level on V
shows the structure of the LVI module. The LVI is enabled out of reset. The following bits,
FROM CONFIG-1
DETECTOR
LOW V
LVI5OR3
V
DD
DD
DD
, while in stop mode.
MC68HC908EY16 • MC68HC908EY8 Data Sheet, Rev. 10
Figure 11-1. LVI Module Block Diagram
V
V
DD
DD
DD
> LVI
< LVI
FROM CONFIG-1
voltage falls to the LVI trip voltage.
TRIPR
TRIPF
LVIPWRD
= 1
= 0
LVIOUT
FROM CONFIG-1
STOP INSTRUCTION
LVIRSTD
FROM CONFIG-1
LVI RESET
LVISTOP
DD
pin
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