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      Freescale 公司的MC9S08LL16 是8位段LCD 微控制器,高達(dá)20MHz的CPU,工作電壓3.6V-1.8V,工作溫度-40℃到85℃. MC9S08LL16支持多達(dá)32個(gè)中斷源/重置源,主要用在手提醫(yī)療設(shè)備,個(gè)人診斷,以電池為能源的設(shè)備,低端計(jì)量表,帶顯示的ZigBee節(jié)點(diǎn),小型家電等.本文介紹MC9S08LL16主要特性,方框圖以及演示板DEMO9S08LL16主要特性和詳細(xì)電路圖.

S08LL 8-bit segment LCD microcontroller family is ideal for battery-powered applications such as medical diagnostics or handheld appliances. The S08LL family extends battery life with industry leading low-power technology, eases development time and eliminates any excess cost with its complete Tower ecosystem.

MC9S08LL16主要特性:

• 8-Bit HCS08 Central Processor Unit (CPU)

– Up to 20-MHz CPU at 3.6V to 1.8V across temperature range of -40℃ to 85℃

– HC08 instruction set with added BGND instruction

– Support for up to 32 interrupt/reset sources

• On-Chip Memory

– Dual Array FLASH read/program/erase over full operating voltage and temperature

– Random-access memory (RAM)

– Security circuitry to prevent unauthorized access to RAM and FLASH contents

• Power-Saving Modes

– Two low power stop modes

– Reduced power wait mode

– Low power run and wait modes allow peripherals to run while voltage regulator is in standby

– Peripheral clock gating register can disable clocks to unused modules, thereby reducing currents.

– Very low power external oscillator that can be used in stop2 or stop3 modes to provide accurate clock source to real time counter

– 6 usec typical wake up time from stop3 mode

• Clock Source Options

– Oscillator (XOSC) — Loop-control Pierce oscillator; Crystal or ceramic resonator range of 31.25 kHz to 38.4 kHz or 1 MHz to 16 MHz

– Internal Clock Source (ICS) — Internal clock source module containing a frequency-locked-loop (FLL) controlled by internal or external reference; precision trimming of internal reference allows 0.2% resolution and 2% deviation over temperature and voltage; supports bus frequencies from 1MHz to 10 MHz.

• System Protection

– Watchdog computer operating properly (COP) reset with option to run from dedicated 1-kHz internal clock source or bus clock

– Low-Voltage Warning with interrupt

– Low-Voltage Detection with reset or interrupt

– Illegal opcode and illegal address detection with reset

– Flash block protection

• Development Support

– Single-wire background debug interface

– Breakpoint capability to allow single breakpoint setting during in-circuit debugging (plus two more breakpoints in on-chip debug module)

– On-chip in-circuit emulator (ICE) debug module containing three comparators and nine trigger modes. Eight deep FIFO for storing change-of-flow addresses and event-only data. Debug module supports both tag and force breakpoints

• Peripherals

– LCD — 4x28 or 8x24 LCD driver with internal charge pump and option to provide an internally regulated LCD reference that can be trimmed for contrast control.

– ADC — 8-channel, 12-bit resolution; 2.5 μs conversion time; automatic compare function; temperature sensor; internal bandgap reference channel; operation in stop3; fully functional from 3.6V to 1.8V

– ACMP — Analog comparator with selectable interrupt on rising, falling, or either edge of comparator output; compare option to fixed internal bandgap reference voltage; outputs can be optionally routed to TPM module; operation in stop3

– SCI — Full duplex non-return to zero (NRZ); LINｍａｓｔｅｒextended break generation; LIN slave extended break detection; wake up on active edge

– SPI— Full-duplex or single-wire bidirectional; Double-buffered transmit and receive;ｍａｓｔｅｒor Slave mode; MSB-first or LSB-first shifting

– IIC — IIC with up to 100 kbps with maximum bus loading; Multi．ｍａｓｔｅｒoperation; Programmable slave address; Interrupt driven byte-by-byte data transfer; supports broadcast mode and 10-bit addressing

– TPMx — Two 2-channel (TPM1 and TPM2); Selectable input capture, output compare, or buffered edge- or center-aligned PWM on each channel;

– TOD— (Time Of Day) 8-bit quarter second counter with match register; External clock source for precise time base, time-of-day, calendar or task scheduling functions; Free
running on-chip low power oscillator (1 kHz) for cyclic wake-up without external components.

• Input/Output

– 38 GPIOs, 2 output-only pins

– 8 KBI interrupts with selectable polarity

– Hysteresis and configurable pull up device on all input pins; Configurable slew rate and drive strength on all output pins.

• Package Options 64-LQFP, 48-LQFP and 48-QFN

MC9S08LL16目標(biāo)應(yīng)用:

Battery powered applications

Portable medical devices

Thermostats

Alarms/clocks

Exercise equipment

Personal diagnostics

Calculators

Low-end utility metering

ZigBee® nodes with display

Scrolling text displays

Small appliances


圖1.MC9S08LL16 系列方框圖

MC9S08LL16 演示板DEMO9S08LL16

The DEMO9S08LL16 is a demonstration board for the MC9S08LL16 microcontroller. Application development is quick and easy with the integrated USB-BDM, sample software tools, and examples. An optional BDM_PORT port is also provided to allow use of a BDM_PORT cable. Two, 40-pin connectors provide access to all IO signals on the target MCU.

The cost effective DEMO9S08LL16 demonstration kit contains everything a designer needs to develop and evaluate application code. The integrated USB multilink allows a designer to communicate with the board and target device with only a USB cable

演示板DEMO9S08LL16主要特性:

MC9S08LL16, 64 LQFP

Integrated P&E USB-BDM

On-board +5V regulator

Battery holder for Li-ion battery

Power Input Selection Jumpers

5 Push Switches; 4 User, 1 Reset

10 LED Indicators; 8 User, VDD, USB

5K ohm POTs w /LP Filter

Light Sensor w/ LP Filter and Op Amp

User Option Jumpers to disconnect Peripherals

40-pin MCU I/O Connector

2.0mm Barrel Connector

BDM_PORT (not installed)

USB Connector

DB9 Connector

圖2.演示板DEMO9S08LL16外形圖

圖3.演示板DEMO9S08LL16電路圖(1)

圖4.演示板DEMO9S08LL16電路圖(2)