Medical Applications User Guide (pdf) - Freescale Semiconductor
Medical Applications User Guide (pdf) - Freescale Semiconductor
Medical Applications User Guide (pdf) - Freescale Semiconductor
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<strong>Medical</strong> Imaging<br />
18.14<br />
Capacitive Sensing and<br />
Touch Screen Display<br />
The MC34940 is intended for cost-sensitive<br />
applications where non-contact sensing<br />
of objects is desired. When connected to<br />
external electrodes, an electric field is created.<br />
The MC34940 detects objects in this electric<br />
field. The IC generates a low-frequency sine<br />
wave, which is adjustable by using an external<br />
resistor and is optimized for 120 kHz. The<br />
sine wave has very low harmonic content to<br />
reduce harmonic interference. The MC34940<br />
also contains support circuits for an MCU to<br />
allow the construction of a two-chip E-field<br />
system.<br />
For more information about touch panel<br />
applications, see the application note titled<br />
Touch Panel <strong>Applications</strong> Using the MC34940/<br />
MC33794 E-Field IC (document AN1985),<br />
available at freescale.com.<br />
For wireless communication, power<br />
management, keypad and speaker<br />
implementation modules, see Chapter 3<br />
Telehealth Systems Introduction.<br />
Table 18.2: FFT/DFT Hardware Accelerator Features<br />
Standard Compliance Data Rates Comments<br />
FFT sizes: 128, 256, 512, 1024, 2048 FFT2048: Up to 280 Mega samples/sec Advanced scaling options<br />
points<br />
FFT1024: Up to 350 Mega samples/sec Guard bands insertion in iFFT<br />
DFT sizes: Variable lengths DFT/IDFT<br />
processing of the form 2 k ·3 m ·5 n ·12, up<br />
to 1536 points<br />
DFT: Up to 175 Mega samples/sec<br />
Table 18.3: MSC815x and MSC825x Family Comparison Chart<br />
Device 8156 8154 8152 8151 8256 8254 8252 8251<br />
SC8350 DSP Cores 6 4 2 1 6 4 2 1<br />
Core Speed (MHz) 1 GHz 1 GHz 1 GHz 1 GHz 1 GHz<br />
800 MHz<br />
Core Performance (16-bit<br />
MMACs)<br />
Table 18.4: <strong>Freescale</strong> Technologies for <strong>Medical</strong> Imaging<br />
1 GHz<br />
800 MHz<br />
1 GHz 1 GHz<br />
102 <strong>Medical</strong> <strong>Applications</strong> <strong>User</strong> <strong>Guide</strong><br />
Up to<br />
48000<br />
Up to<br />
32000<br />
Up to<br />
16000<br />
Up to<br />
8000<br />
Up to<br />
48000<br />
Up to<br />
32000<br />
Shared M3 Memory 1 MB 1 MB<br />
I-Cache (per core) 32 KB 32 KB<br />
D-Cache (per core) 32 KB 32 KB<br />
L2 I-Cache (per core) 512 KB 512 KB<br />
DDR2/3 2 (800 MHz) 2 (800 MHz)<br />
PCIe 1 1<br />
GEMAC (RGMII, SGMII) 2 2<br />
sRIO 2 2<br />
TDM 4 4<br />
SPI 1 1<br />
UART 1 1<br />
I 2 C 1 1<br />
FFT/DFT Accelerators 1<br />
Proc. Tech. 45 nm SOI 45 nm SOI<br />
Package 783 Ball<br />
FC-PBGA<br />
Device Description Key Features Alternate Options<br />
Ultrasound Imaging<br />
MPC5121e 32-bit Power Architecture ® MCU 400 MHz e300 core and 760 MIPS built on<br />
Power Architecture<br />
i.MX53 ARM ® Cortex-A8 <strong>Applications</strong> Processor i.MX53 ARM Cortex-A8 <strong>Applications</strong> Processor<br />
1GHz ARM Cortex A8, DDR3, Ethernet, 720P<br />
Encode/1080P Decode, 2D/3D Graphics<br />
MSC8156 Six-Core High-Performance DSP Digital signal controller, built on multicore<br />
StarCore DSP<br />
783 Ball<br />
FC-PBGA<br />
MPC8536E, MPC5125, MPC83xx<br />
i.MX28x, i.MX 6 Series<br />
MSC8154, MSC8152<br />
MPR03x Touch Sensor 2 or 3-Pad touch sensors Xtrinsic Touch Sensing Software<br />
MC13224V 2.4 GHz RF Transceiver Platform in a Package MC13213<br />
Digital X-Ray<br />
i.MX28x ARM9 <strong>Applications</strong> Processor 454 MHz ARM9 core, power management, LCD<br />
controller, touch screen, DDR2/mDDR/NAND,<br />
Ethernet, USB PHY x2,
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