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| Freescale S08MM128医疗设备开发方案 | |||||
作者：Freescal… 文章来源：Freescale 点击数： 更新时间：2011-12-13  |
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The 9S08MM128/64/32 provides ultra-low-power operation, USB connectivity, graphic display support and unparalleled measurement accuracy, all in a single 8-bit microcontroller, allowing device designers to create more fully featured products at a lower cost. The 9S08MM128/64/32 is ideal for medical applications or any other application requiring a significant amount of precision analog such as instrumentation and industrial control. The 9S08MM128/64/32 is part of the Freescale Flexis™ microcontroller series. S08MM128主要特性： 8-Bit HCS08 Central Processor Unit (CPU) – Up to 48-MHz CPU above 2.4 V, 40 MHz CPU above 2.1 V, and 20 MHz CPU above 1.8 V across temperature of -40°C to 105°C – HCS08 instruction set with added BGND instruction – Support for up to 33 interrupt/reset sources On-Chip Memory – 128 K Dual Array Flash read/program/erase over full operating voltage and temperature – 12 KB Random-access memory (RAM) – Security circuitry to prevent unauthorized access to RAM and Flash Power-Saving Modes – Two ultra-low power stop modes. Peripheral clock enable register can disable clocks to unused modules to reduce currents – Time of Day (TOD) — Ultra-low power 1/4 sec counter with up to 64s timeout. – Ultra-low power external oscillator that can be used in stop modes to provide accurate clock source to the TOD. 6 usec typical wake up time from stop3 mode Clock Source Options – Oscillator (XOSC1) — Loop-control Pierce oscillator; 32.768 kHz crystal or ceramic resonator dedicated for TOD operation. – Oscillator (XOSC2) — for high frequency crystal input for MCG reference to be used for system clock and USB operations. – Multipurpose Clock Generator (MCG) — PLL and FLL; precision trimming of internal reference allows 0.2% resolution and 2% deviation over temperature and voltage; supports CPU frequencies from 4 kHz to 48 MHz. System Protection – Watchdog computer operating properly (COP) reset Watchdog computer operating properly (COP) reset with option to run from dedicated 1-kHz internal clock source or bus clock – Low-voltage detection with reset or interrupt; selectable trip points; separate low-voltage warning with optional interrupt; selectable trip points – Illegal opcode and illegal address detection with reset – Flash block protection for each array to prevent accidental write/erasure – Hardware CRC to support fast cyclic redundancy checks Development Support – Single-wire background debug interface – Real-time debug with 6 hardware breakpoints (4 PC, 1 address and 1 data) Breakpoint capability to allow single breakpoint setting during in-circuit debugging – On-chip in-circuit emulator (ICE) debug module containing 3 comparators and 9 trigger modes Peripherals – CMT— Carrier Modulator timer for remote control communications. Carrier generator, modulator and driver for dedicated infrared out. Can be used as an output compare timer. – IIC— Up to 100 kbps with maximum bus loading; Multi-master operation; Programmable slave address; Interrupt driven byte-by-byte data transfer; supports broadcast mode and 11-bit addressing – PRACMP — Analog comparator with selectable interrupt; compare option to programmable internal reference voltage; operation in stop3 – SCI — Two serial communications interfaces with optional 13-bit break; option to connect Rx input to PRACMP output on SCI1 and SCI2; High current drive on Tx on SCI1 and SCI2; wake-up from stop3 on Rx edge – SPI1— Serial peripheral interface (SPI) with 64-bit FIFO buffer; 16-bit or 8-bit data transfers; full-duplex or single-wire bidirectional; double-buffered transmit and receive; master or slave mode; MSB-first or LSB-first shifting – SPI2— Serial peripheral interface with full-duplex or single-wire bidirectional; Double-buffered transmit and receive; Master or Slave mode; MSB-first or LSB-first shifting – TPM — Two 4-channel Timer/PWM Module; Selectable input capture, output compare, or buffered edge- or center-aligned PWM on each channel; external clock input/pulse accumulator – USB — Supports USB in full-speed device configuration. On-chip transceiver and 3.3V regulator help save system cost, fully compliant with USB Specification 2.0. Allows control, bulk, interrupt and isochronous transfers. Not available on MC9S08MM32A devices. – ADC16 — 16-bit Successive approximation ADC with up to 4 dedicated differential channels and 8 single-ended channels; range compare function; 1.7 mV/C temperature sensor; internal bandgap reference channel; operation in stop3; fully functional from 3.6V to 1.8V, Configurable hardware trigger for 8 Channel select and result registers – PDB — Programmable delay block with 16-bit counter and modulus and prescale to set reference clock to bus divided by 1 to bus divided by 2048; 8 trigger outputs for ADC16 module provides periodic coordination of ADC sampling sequence with sequence completion interrupt; Back-to-Back mode and Timed mode – DAC— 12-bit resolution; 16-word data buffers with configurable watermark. – OPAMP — Two flexible operational amplifiers configurable for general operations; Low offset and temperature drift. – TRIAMP — Two trans-impedance amplifiers dedicated for converting current inputs into voltages. Input/Output – Up to 47 GPIOs and 2 output-only pin and 1 input-only pin. – Voltage Reference output (VREFO). – Dedicated infrared output pin (IRO) with high current sink capability. – Up to 16 KBI pins with selectable polarity. Package Options – 81-MBGA 10x10 mm – 80-LQFP 12x12 mm 64-LQFP 10x10 mm S08MM128目标应用： Industrial Instrumentation Medical/Healthcare Blood Pressure Monitors Heart Rate Monitors Pulse Oximetry Ultrasound Telehealth System Hospital Admission Machine Blood Glucose Monitors (Glucometers) Electrocardiograph (ECG) Anesthesia Unit Monitor Vital Signs Monitors Defibrillators  图1。MC9S08MM128系列方框图 TWR-S08MM128-KIT医疗设备开发工具 The TWR-S08MM128-KIT is a medical-oriented development tool for the 9S08MM128 microcontroller. This kit is part of the Freescale Tower System, a modular, reconfigurable development platform that allows designers to get to market faster with packaged evaluation boards, tools and runtime software. The kit includes the MED-EKG which is an electrocardiograph sensor for medical applications development. The 9S08MM microcontroller module is designed to be a standalone debug tool and can also be purchased separately from the kit, part number TWR-S08MM128. TWR-S08MM128-KIT医疗设备开发工具主要特性： Freescale Tower System compliant Integrated open-source BDM debugging tool Small form factor (59mm x 90mm) Supports external communications interfaces Includes power regulation circuitry with standardized bus Two 80-pin connectors on the outside to support debugging or expansion to LCD module RS232, RS485, CAN , USB Open connector for MED-EKG development board Low power TWR-S08MM128-KIT医疗设备开发工具包括： TWR-S08MM128 - 8-bit module that features the 9S08MM128 TWR-SER - Serial module that features Ethernet, USB, RS232/485 and CAN TWR-ELEV - Two elevator boards that provide structural integrity, communications interfaces, power regulation circuitry with standardized bus Necessary cables MED-EKG - Electrocardiograph sensor to develop medical applications with Flexis MM Family An interactive DVD with lab tutorials, software, training and collateral A printed guide on how to quickly get started using the development kit  图2。TWR-S08MM128-KIT外形图  图3。TWR-S08MM128-KIT方框图  图4。TWR-S08MM128-KIT电路图（1）  图5。TWR-S08MM128-KIT电路图（2）  图6。TWR-S08MM128-KIT电路图（3）  图7。TWR-S08MM128-KIT电路图（4） 详情请见： http://cache.freescale.com/files/microcontrollers/doc/data_sheet/MC9S08MM128.pdf?fpsp=1 和 tp://cache.freescale.com/files/32bit/hardware_tools/schematics/SCH-26136.pdf?fpsp=1 |
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