A.
B.
C.	'C4x High power DSP made by Texas Instruments. 'C6x An even higher power DSP made by Texas Instruments. Cable(s) An encased group of insulated wires for transmitting electricity etc. Communication ports (TMS320Cxx) or Comm-port Communications Ports: the 8-bit data parallel inter-processor ports of the ‘C4x processor Conversion Speed or Rate The number of conversions per second to a specified resolution or accuracy.
D.	DAT Digital Audio Tape DDC Digital Down Converter. DCT Discrete Co-sine Transform: used to transform discrete data from the domain of time or space to the frequency domain, without analyzing the phase of the signal DMA Direct Memory Access: a type of data transfer which does not require the intervention of the main processor DMA Coprocessor (TMS320C4x) Coprocessor used to control DMA transfers. DNL Differential Non-Linearity. DNL is a measure of the deviation from ideal between any two adjacent codes. An ideal converter has the code exactly the same size, and a DNL of 0 (zero). DRAM Dynamic Random Access Memory: a cheap and compact form of RAM which needs to be periodically refreshed in order to retain its contents DSP Digital Signal Processor.
E.	EDRAM Enhanced Dynamic Random Access Memory. EEPROM Electrically Eraseable Programmable Read Only Memory ENOB Effective Number of Bits. The ENOB is a means of evaluating the performance of A / D converters. EPROM Eraseable Programmable Read Only Memory: ROM which can be erased using ultra-violet light and reprogrammed
F.	FCT Fast Co-sine Transform FIR Finite Impulse Response filter: an unconditionally stable filter FFT Fast Fourier Transform: a computationally efficient algorithm for implementing the Discrete Fourier Transform which is used to transform discrete data from the domain of time or space to the frequency domain FLASH ADCs High speed ADCs, typically used in video applications FLASH ROM Fast Electrically Erasable ROM FPDP Front Panel Data Port: a standard digital interface used for the rapid transfer of data between I/O boards and DSP boards FPGA Field Programmable Gate Array: a general purpose chip which can be programmed to carry out a specific hardware function
G.	Gain Error / Full Scale Error The difference between the ideal and actual output when a converter input is at full scale.
H.
I.	I2C Industry standard serial communications interface IDC Insulation Displacement Connector ID-ROM Identity Read Only Memory. A small EEPROM used to store configurational data. IIR Infinite Impulse Response filter: A filter which utilises feeback to provide very sharp transitions from the pass-band to the stop-band; can be unstable INL Integral Non-Linearity. Error measurement used to describe the absolute accuracy of a converter. ISA Industry Standard Architecture
J.	JTAG Joint Test Action Group. A serial scan test bus, which can be used for testing and exercising the processor.
K.
L.	LUT Look Up Table LSB Least Significant Bit. The right-most bit in a data converter code.
M.	MIPS Million Instructions Per Second MSB Most Significant Bit. The left-most bit in a data converter table. MSPS Mega Samples Per Second MFLOPS Million Floating Points Operations per Second MHz Mega Hertz (Million cycles per second) MOPS Million Operations Per Second
N.	NTSC Color TV standard (60Hz, 525 lines) developed in the US
O.	OEM Original Equipment Manufacturer Offset The difference between the ideal and the actual output when the converter input is zero.
P.	PAL Phase Alternate Lines: colour TV standard (50Hz, 625 lines) used in most European countries and widely throughout the world PC-Card Formerly known as PCMCIA cards PCI Bus Peripheral Component Interconnect Local Bus. A high speed avenue for transferring data between the CPU and peripherals. PMC PCI Mezzanine Card: an industry standard PCI based subsystem in which mezzanine cards are connected to a carrier board by means of a local PCI bus PROM Programmable ROM: ROM which is supplied blank and is once programmable
Q.
R.	RAMDAC Random Access Memory Digital Analogue Converter Resolution In the realm of A / D conversion this refers the Number of bits representing an analogue signal, generally ranging form 6 - 24. The higher the number of bits, the higher the resolution and generally the greater accuracy. RISC Reduced Instruction Set Computer RS-170 US monochrome TV standard (60Hz, 525 lines) RTOS Real-Time Operating System
S.	SBSRAM Synchronous Burst Static RAM: SRAM which contains its own clock to provide high bandwidth memory accesses SCSI Small Computer Systems Interface SDRAM Synchronous Dynamic RAM: DRAM which contains its own clock to provide high bandwidth memory accesses SFDR Spurious Free Dynamic Range. Refers to the range between the highest level of the fundamental frequency and the highest level of any spurious signal. Sigma-Delta ADCs ADCs which employ oversampling to achieve a high signal to noise ratio SRAM Static Random Access Memory: the conventional form of RAM SDB The Sundance Digital Bus (SDB) is the new communication link developed by Sundance to transfer data between TIMs. It is a 16-bit parallel data link that allows transfer at up to 200Mbytes/s using a ground interlaced signal cable Technical Specification (285 Kb) SHB The Sundance High-speed Bus (SHB) is the second generation of the Sundance Digital Bus (SDB) and offers a 60-way COAX-cable connection (http://www.precisionint.com/tdibrsb/content/howtouse.asp) between each Module; The SHB can be used as a custom-design 60-way I/O port from the FPGA or can be configured as 2x 16-bit SDB ports, 1x 8-bit & 1x 32-bit or 5x 8-bit ports. The maximum speed for the SHB is rated up to 200MHz using Virtex-2 FPGAs fitted on the Module sites. Technical Specification (285 Kb) SDL The Sundance Datapipe Link (SDL) is a 8-bit parallel data link that allows transfer at 50Mbytes/s between FPGAs using the standard comm-port link
T.	THD Total Harmonic Distortion. the ratio of the fundamental frequency to it's harmonic. TIM-40 Short for Texas Instruments Module, a form-factor devised by TI for the TMS320C4x processor. TRAM Short for TRAnsputer Module, a form-factor devised by Inmos for the transputer. Transputer A high-performance RISC processor, with memory and communication channels. TTL I/O Transistor Transistor Logic Input/Output
U.
V.	VME Versa Module Eurocard: industry standard 32-bit data bus offering theoretical transfer rates up to 40Mbytes/s. VME64 is a 64-bit version achieved by multiplexing the VMEbus’ 32 data lines and 32 address lines and offering theoretical transfer rates up to 80Mbytes/s VRAM Video Random Access Memory. VXI VMEbus Extensions for Instrumentation
W.
X.	XDS510 TI in-system emulator controller card
Y.
Z.	ZBT SRAM ZBT SRAM is synchronous fast static RAM designed to eliminate dead bus cycles during back-to-back read/write and back-to-back write/read cycles by providing 100% bus utilization.