參數(shù)資料
型號: MC68HC08LT8CFGE
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP44
封裝: 10 X 10 MM, 1.40 MM THICKNESS, 0.80 MM PITCH, ROHS COMPLIANT, MS-026BCB, LQFP-44
文件頁數(shù): 26/156頁
文件大?。?/td> 1107K
代理商: MC68HC08LT8CFGE
MC68HC08LT8 Data Sheet, Rev. 1
Freescale Semiconductor
121
Chapter 13
Low-Voltage Inhibit (LVI)
13.1 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 below the LVI trip falling voltage, VTRIPF.
13.2 Features
Features of the LVI module include:
Programmable LVI interrupt and reset
Selectable LVI trip voltage
Programmable stop mode operation
13.3 Functional Description
Figure 13-1 shows the structure of the LVI module.
Figure 13-1. LVI Module Block Diagram
LOW VDD
DETECTOR
LVIPWRD
STOP INSTRUCTION
LVI RESET
VDD > VTRIPR = 0
VDD ≤ VTRIPF = 1
FROM CONFIG1
VDD
FROM CONFIG1
LVISEL[1:0]
FROM CONFIG2
TO LVISR
LVISTOP
LVIRSTD
INTERRUPT
REQUEST
LVI
LVIOUT
TO LVISR
EDGE
DETECT
LATCH
CLR
FROM LVISR
LVIIE
LVIIF
FROM LVISR
LVIIACK
DEFAULT
ENABLED
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