参数资料
型号: ST6200CN6/XXX
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO16
封装: ROHS COMPLIANT, PLASTIC, SSOP-16
文件页数: 17/100页
文件大小: 3849K
代理商: ST6200CN6/XXX
ST6200C ST6201C ST6203C
Doc ID 4563 Rev 5
23/100
5.3 RESET
5.3.1 Introduction
The MCU can be reset in three ways:
A low pulse input on the RESET pin
Internal Watchdog reset
Internal Low Voltage Detector (LVD) reset
5.3.2 RESET Sequence
The basic RESET sequence consists of 3 main
phases:
Internal (watchdog or LVD) or external Reset
event
A delay of 2048 clock (fINT) cycles
RESET vector fetch
The reset delay allows the oscillator to stabilise
and ensures that recovery has taken place from
the Reset state.
The RESET vector fetch phase duration is 2 clock
cycles.
When a reset occurs:
– The stack is cleared
– The PC is loaded with the address of the Reset
vector. It is located in program ROM starting at
address 0FFEh.
A jump to the beginning of the user program must
be coded at this address.
– The interrupt flag is automatically set, so that the
CPU is in Non Maskable Interrupt mode. This
prevents the initialization routine from being in-
terrupted. The initialization routine should there-
fore be terminated by a RETI instruction, in order
to go back to normal mode.
Figure 13. RESET Sequence
VDD
RESET PIN
WATCHDOG
VIT+
VIT-
WATCHDOG UNDERFLOW
RESET
2048 CLOCK CYCLE (fINT) DELAY
LVD
RESET
INTERNAL
RUN
RESET
RUN
RESET
1
相关PDF资料
PDF描述
ST6201CB3/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP16
ST6200CM6/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO16
ST6203CN3/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO16
ST6209CB1/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP20
ST6220CB3/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP20
相关代理商/技术参数
参数描述
ST6200FNL 制造商:Pulse Electronics Corporation 功能描述:TRANSFORMER - Bulk 制造商:Pulse Electronics Corporation 功能描述:XFRMR 1:1 SONET/SDH E4/STM-1 SMD
ST6200FNLT 制造商:Pulse Electronics Corporation 功能描述:TRANSFORMER - Tape and Reel 制造商:Pulse Electronics Corporation 功能描述:XFRMR 1:1 SONET/SDH E4/STM-1 SMD
ST6200L 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:LOW VOLTAGE 8-BIT ROM MCUs WITH A/D CONVERTER,AND 16 PINS
ST6200LB1 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:LOW VOLTAGE 8-BIT ROM MCUs WITH A/D CONVERTER,AND 16 PINS
ST6200LB1/XXX 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller