Medical Applications User Guide (pdf) - Freescale Semiconductor

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Diagnostic and Therapy Devices Key Features • ARM Cortex-M4 core + DSP. 120-150 MHz, single cycle MAC, single instruction multiple data (SIMD) extensions, single precision floating point unit • 512 KB-1 MB flash. Fast access, high reliability with four-level security protection • Up to four high-speed 16-bit analog-todigital converter (ADC) with configurable resolution. Single or differential output mode operation for improved noise rejection. 500 ns conversion time achievable with programmable delay block triggering • System security and tamper detect with secure real-time clock with independent battery supply. Secure key storage with internal/external tamper detect for unsecure flash, temperature, clock, and supply voltage variations and physical attack detection PXS20 Family of 32-bit Power Architecture MCUs The PXS20 targets industrial applications which require compliance with IEC61508 (SIL 3) safety standard. It reduces design complexity and component count by putting key functional safety features on a single chip with a dual-core, dual-issue architecture, which can be statically switched between lockstep mode (redundant processing and calculations) to decoupled parallel mode (independent core operation). The PXS20 MCUs are SafeAssure functional safety solutions. Key Features • Dual e200z4 CPU architecture • Dual processing spheres including: CPU, DMA, interrupt controller, crossbar and MPU for logic level fault detection • Two statically configurable modes of operation: Lockstep operation (redundant processing and calculations) and Dual Parallel Mode (independent core operation) • Fault Collection Unit, which monitors and manages fault events • Error correction coding on RAM and flash memory allows detection/correction of memory errors Figure 12-3: 13-3: Kinetis K60 K60 Family Family Block Block Diagram Diagram Figure 12-3: Kinetis K60 Family Block Diagram Core System Memories Clocks Internal and ARM External Watchdogs Debug Memory DSP Interfaces Protection Unit (MPU) Interrupt Floating Point Controller Unit (FPU) DMA Low-Leakage Wake-Up Unit Security Analog Timers and Integrity Cyclic Redundancy Carrier Check (CRC) Modulator Transmitter Random Number Generator Cryptographic Periodic Acceleration Interrupt Unit (CAU) Timers H/W Tamper Detection Unit Independent Phase-Locked Loop Frequency- Locked Loop Low/High- Frequency Oscillators Internal Reference Clocks Communication Interfaces HMI Xtrinsic Low-Power Touch-Sensing Interface Real-Time Clock (RTC) ® Cortex-M4 100/120/150 MHz 16-bit ADC FlexTimer PGA Analog Comparator Programmable Delay Block 6-bit DAC 12-bit DAC Low-Power Timer Voltage Reference IEEE ® Program Flash SRAM (256 KB to 1 MB) (64 to 128 KB) FlexMemory External (256 to 512 KB) Bus Interface (4 to 16 KB EE) (FlexBus) Serial Cache Programming Interface (EzPort) DDR Controller NAND Flash Controller I GPIO 1588 Timer 2C I UART (ISO 7816) SPI CAN IEEE 1588 Ethernet MAC 2 Core System Memories Clocks Internal and ARM External Watchdogs Debug Memory DSP Interfaces Protection Unit (MPU) Interrupt Floating Point Controller Unit (FPU) DMA Low-Leakage Wake-Up Unit Security Analog Timers and Integrity Cyclic Redundancy Carrier Check (CRC) Modulator Transmitter Random Number Generator Cryptographic Periodic Acceleration Interrupt Unit (CAU) Timers H/W Tamper Detection Unit Independent Real-Time Clock (RTC) Standard Feature Phase-Locked Loop Frequency- Locked Loop Low/High- Frequency Oscillators Internal Reference Clocks Communication Interfaces HMI Xtrinsic Low-Power Touch-Sensing S Interface Secure Digital Host Controller (SDHC) USB On-the-Go (LS/FS) USB On-the-Go (HS) USB Device Charger Detect (DCD) USB Voltage Regulator ® Cortex-M4 100/120/150 MHz 16-bit ADC FlexTimer PGA Analog Comparator Programmable Delay Block 6-bit DAC 12-bit DAC Low-Power Timer Voltage Reference IEEE ® 1588 Timer Program Flash SRAM (256 KB to 1 MB) (64 to 128 KB) FlexMemory External (256 to 512 KB) Bus Interface (4 to 16 KB EE) (FlexBus) Serial Cache Programming Interface (EzPort) DDR Controller NAND Flash Controller I GPIO 2C I UART (ISO 7816) SPI CAN IEEE 1588 Ethernet MAC 2 Optional Feature S Secure Digital Host Controller (SDHC) USB On-the-Go (LS/FS) USB On-the-Go (HS) USB Device Charger Detect (DCD) USB Voltage Regulator Figure 12-4: PXS20 Family Block Diagram Figure 12-4: 13-4: PXS20 PXS20 Family Family Block Block Diagram Diagram Standard Feature Optional Feature Core Core System System Debug System System Core Core Frequency Frequency Modulated PLL JTAG JTAG Nexus Frequency Modulated Frequency PLL e200z4 e200z4 Modulated Software PLL Watchdog Software System Watchdog Timer Nexus System Boot Assist Module System (BAM) Software Modulated PLL Watchdog Software System Timer Watchdog e200z4 e200z4 FPU System Interrupt Controller Timer Boot Clock Monitor Assist Unit Module (BAM) Interrupt System Controller Timer FPU FPU VLE VLE CACHE MMU DMA Interrupt (up to 32-ch.) Controller Crossbar Switch DMA (up to 32-ch.) Memory Protection Unit Semaphone Clock Unit Monitor Unit VReg Semaphone 4 x Redundancy Unit Checker DMA (up to 32-ch.) Interrupt Controller Crossbar Switch DMA Memory (up to 32-ch.) Protection Unit VLE CACHE MMU FPU VLE CACHE Crossbar Memory Switch Control VReg Crossbar Switch Communication CACHE MMU 3 x 2 x Memory Timer 4 (6-ch.) x Redundancy Fault Control Memory Up MMU Protection to 1 MB UART Unit Checker and Protection Unit Flash 3 x Collection Unit 3 x w/ECC PWM (4-ch.) SPI Memory Up to 4 ADC Control Communication 2 x Up to 128 KB (34-ch.) Cyclic CAN 3 x Redundancy 2 x SRAM Timer Cross (6-ch.) Trigger Fault Checker Control External Up to 1 MBw/ECC UART Unit and Bus (32 KB S/B) Flash 3 Periodic x Collection Sine Wave Unit 3 x w/ECC PWM Interrupt (4-ch.) Timer Generator SPI Up to 128 KB SRAM w/ECC (32 KB S/B) Temperature Up to Sensor 4 ADC (34-ch.) Cross Trigger Unit Cyclic Redundancy Checker 2 x CAN External Bus Periodic Interrupt Timer Temperature Sine Wave Generator • Designed to address safety requirements Sensor outlined in IEC61511 and IEC61508 (SIL3) • Robust communications CAN/safety port high speed low latency messaging • Cross-triggering unit coordinates ADC, timer and PWM generation and minimizes CPU interrupt load • Integrated timer and analog peripherals support precise control of integrated electric motor control periphery, enables the device to control of up to two brushless 3-phase motors or multiple valves with only minimum interrupt load 74 Medical Applications User Guide
Vital Signs 14.1 Introduction A vital sign monitor is a multi-parameter device that measures blood pressure, temperature, oxygen saturation and heart electrical activity to give a clear view of patient information. This application constantly monitors the measurements from the ECG, pulse oximetry, blood pressure and temperature of the patient. For this application, Freescale offers medical solutions that use our product expertise in MCUs, sensors, analog and wireless technology for home portable medical devices, diagnostic and therapy devices and medical imaging devices. Freescale is dedicated to helping patients live a better life by driving innovation and enabling medical device manufacturers to leverage the latest available technology. freescale .com/medical 75
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Medical Applications User Guide TM
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freescale.com/medical 3 Introductio
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Introduction 1.1 Freescale Offers T
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Monebo Kenetic ECG Algorithms Free
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Home Portable Medical 2.1 Introduct
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3.2 Home Health Hub (HHH) Reference
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3.3 Power Management Every design n
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MC34704 The MC34704 is a multi-chan
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3.7 How it Works The external capac
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eliably monitor and manage non-crit
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3.19 Standard Medical USB Communica
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Page 103 and 104: Summary Summary Applications Freesc
Page 105 and 106: Appendix Digital Signal Processing
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