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參數資料
| 型號： | MSP430FW427IPMR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, FLASH, 8 MHz, RISC MICROCONTROLLER, PQFP64 |
| 封裝： | GREEN, PLASTIC, QFP-64 |
| 文件頁數： | 5/61頁 |
| 文件大?。?/td> | 828K |
| 代理商： | MSP430FW427IPMR |
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MSP430FW42x
www.ti.com
SLAS383D – OCTOBER 2003 – REVISED JANUARY 2011
Peripherals
Peripherals are connected to the CPU through data, address, and control buses and can be handled using all
instructions. For complete module descriptions, refer to the MSP430x4xx Family User's Guide (SLAU056).
Oscillator and System Clock
The clock system is supported by the FLL+ module that includes support for a 32768-Hz watch crystal oscillator,
an internal digitally-controlled oscillator (DCO), and a high-frequency crystal oscillator. The FLL+ clock module is
designed to meet the requirements of both low system cost and low power consumption. The FLL+ features a
digital frequency locked loop (FLL) hardware that, in conjunction with a digital modulator, stabilizes the DCO
frequency to a programmable multiple of the watch crystal frequency. The internal DCO provides a fast turn-on
clock source and stabilizes in less than 6 s. The FLL+ module provides the following clock signals:
Auxiliary clock (ACLK), sourced from a 32768-Hz watch crystal or a high frequency crystal.
Main clock (MCLK), the system clock used by the CPU.
Sub-Main clock (SMCLK), the subsystem clock used by the peripheral modules.
ACLK/n, the buffered output of ACLK, ACLK/2, ACLK/4, or ACLK/8.
Brownout, Supply Voltage Supervisor
The brownout circuit is implemented to provide the proper internal reset signal to the device during power-on and
power-off. The supply voltage supervisor (SVS) circuitry detects if the supply voltage drops below a user
selectable level and supports both supply voltage supervision (the device is automatically reset) and supply
voltage monitoring (SVM, the device is not automatically reset).
The CPU begins code execution after the brownout circuit releases the device reset. However, VCC may not have
ramped to VCC(min) at that time. The user must insure the default FLL+ settings are not changed until VCC reaches
VCC(min). If desired, the SVS circuit can be used to determine when VCC reaches VCC(min).
Digital I/O
There are six 8-bit I/O ports implemented—ports P1 through P6:
All individual I/O bits are independently programmable.
Any combination of input, output, and interrupt conditions is possible.
Edge-selectable interrupt input capability for all the eight bits of ports P1 and P2.
Read/write access to port-control registers is supported by all instructions.
Basic Timer1
The Basic Timer1 has two independent 8-bit timers which can be cascaded to form a 16-bit timer/counter. Both
timers can be read and written by software. The Basic Timer1 can be used to generate periodic interrupts and
clock for the LCD module.
LCD Drive
The LCD driver generates the segment and common signals required to drive an LCD display. The LCD
controller has dedicated data memory to hold segment drive information. Common and segment signals are
generated as defined by the mode. Static, 2-MUX, 3-MUX, and 4-MUX LCDs are supported by this peripheral.
Watchdog Timer (WDT)
The primary function of the watchdog timer module is to perform a controlled system restart after a software
problem occurs. If the selected time interval expires, a system reset is generated. If the watchdog function is not
needed in an application, the module can be configured as an interval timer and can generate interrupts at
selected time intervals.
Comparator_A
The primary function of the comparator_A module is to support precision slope analog-to-digital conversions,
battery-voltage supervision, and monitoring of external analog signals.
Copyright 2003–2011, Texas Instruments Incorporated
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| MSP430FW429IPMR | 功能描述:16位微控制器 - MCU Mixed Signal MCU RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數據總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT |
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