A236 Video DSP Chip Evaluation Board #2 with
FingerPrint Option
Using Oxford Micro Devices, Inc.'s A236 Video DSP Chip,
the System Designer's Parallel DSP Chip (TM)
Data Sheet Summary
Rev. March 8, 1999
Features
Fully user-programmable, A236-based Video Digital Signal Processor Board interfaced to
Thomson-CSF FingerChip(tm) fingerprint sensor
Adapter socket and interface board are installed in place of video decoder chip in A236 Evaluation
Board #2 and are connected to an external fingerprint reader board
Full documentation is provided so the board can be interfaced by customer to custom input devices
or other types of fingerprint sensors
Fingerprint option includes interface board, RJ45 cable and fingerprint reader board with
Thomson-CSF FingerChip(tm) sensor
Very high speed reading (4 million samples/S typ.) of data from fingerprint sensor is provided
PCI interface
Specifically intended for development of A236-based, embedded fingerprint capture and verification
systems
Enables customer to develop own fingerprint verification software (unit does not include fingerprint
verification software)
Enables customer to easily optimize the human factors of new systems
Provides simultaneous, continuous, fingerprint image capture, processing AND display
Video output can be used for visual debugging of the processing of incoming images
Specifically designed for ease of programming using our parallel-enhanced, ANSI-compatible C
compiler
Existing C programs can be compiled to run on the A236 Chip, and performance-sensitive loops can
be modified to use our parallel enhancements to C
Programs are small, execute very efficiently and can be optimized easily, and their execution speeds
can be forecast easily
Suite of software development tools puts you in full control of the program
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Data Sheet Summary of A236 Evaluation Board #2 with Fingerprint Option
Development tools include a parallel-enhanced C Compiler, assembler, linker, loader, simulator, and
fingerprint sensor and video encoder device drivers
Simple programming model
Graphical user interface to tools interfaces to the board
Powered by Oxford Micro Devices, Inc.,'s
A236 Video DSP Chip
that provides:
o
32-bit
Structure Processing Instruction Set provides fast instruction execution and
single-instruction parallel operations on C-like parallel data structures
o
Four 2x8-/16-bit vector processors, one 24-bit scalar processor and on-chip Motion Estimation
Coprocessor for high video compression performance
o
Four 16-bit x 16-bit multiply-adds, each with 40-bit accumulation, per CPU Clock
o
Supports 16-bit parallel arithmetic, and normal and saturation, signed and unsigned, 8-bit
parallel arithmetic
o
Native support for operations upon monochrome and composite color video data
o
Superior data movement capabilities including extremely powerful, parallel-byte and -word
addressing on arbitrary byte addresses
o
Linear 16 MB address space is used for all program and data storage for ease of programming
o
On-chip, synchronous, burst pipelined, 64-bit wide, 1 KB Instruction and Data Caches with
efficient, 64-byte transfers and
use-as-fill
o
4 MB, 32-bit wide, 100 MHz, 400 MB/S Synchronous DRAM on-board
o
General purpose, RS-232 serial port with programmable baud rate
Analog video output using Samsung KS0125 Video Encoder Chip
Composite and S-Video outputs
PAL and NTSC video output
For Microsoft Windows 95
Applications
Point-of-sale terminals
Cellular phones
Door locks
Telephones
Slot machines
Electronic commerce
Computer security systems
Security systems
Drawing of Basic Board with Single A236 Chip
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Data Sheet Summary of A236 Evaluation Board #2 with Fingerprint Option
Legend:
SIn - S-Video input (not available)
CIn - Composite video input (not available)
SOut - S-Video output
COut - Composite video output
Layout of Front of Basic Board Showing Key Components
(below)
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Data Sheet Summary of A236 Evaluation Board #2 with Fingerprint Option
Photograph of Front of Board, Interface Board and Reader
Board (below)
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Data Sheet Summary of A236 Evaluation Board #2 with Fingerprint Option
NOTE: A clearance of at least 2.0 inches on the component side of the board is required.
Layout of Back of Board Showing Key Components (below)
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Data Sheet Summary of A236 Evaluation Board #2 with Fingerprint Option
PDF 
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