Gage CompuScope 14100C, Hardware Manual And Driver Installation Manual

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CompuScope 3200C 153
CompuScope 3200C product introduction
The CompuScope 3200C is a CompactPCI bus based board-level product which allows the user to capture up to
32 bits of single-ended CMOS/TTL or differential ECL/PECL digital data into on-board memory of up to 2
Gigabytes at clock rates up to 100 MHz.
The CS3200C can also be configured, in software, to be 8, 16 or 32 bits wide, thereby allowing the user to
maximize the use of acquisition memory for 8 or 16 bit inputs.
Multiple CompuScope 3200C cards can be used simultaneously to provide input of more than 32 bits. Consult
the factory for Master/Slave synchronous timing modules to provide for word widths of up to 256 bits.
INPUT CIRCUITRY
The input stage of the CS3200C consists of 34 high-speed comparators: 32 for data and one each for clock and
trigger. The use of high-speed comparators with fully programmable thresholds allows the use of virtually any
logic level: 5V TTL/CMOS, 3.3V CMOS, 2.7 V CMOS, ECL, PECL or even custom logic levels.
Inputs need to be driven by a source capable of driving a 50 Ω load. This is necessary in order to maintain good
signal integrity.
For CMOS or TTL signal sources not capable of driving 50 Ω loads, a special Buffer Board is available from
Gage, which buffers the data with 50 Ω drivers. The input of the Buffer Board is a 68 pin IDC header for data, a
BNC connector for Trigger and another BNC for Clock input. All input signals must be 0 to 3.3 V or 0 to 5V
CMOS or TTL signals.
The output of the Buffer Board is a 68 pin MDR connector which connects to the CS3200C using a 6 foot long
pleated foil cable, supplied with the CompuScope 3200C.
Differential ECL or PECL signals are, by definition, capable of driving a 50 Ω load and interface seamlessly
with the CompuScope 3200C.
CONFIGURABLE INPUT
The output of the on-board comparators is fed into an on-board FPGA, which maximizes the use of on-board
memory for data from 8, 16 or 32 bits of width.
The presence of this FPGA also makes it possible to build customized digital acquisition systems, including
front-end data processing, for specific requirements. Contact the factory for such custom applications.
Customers must decide at the time of placing an order whether they require a differential ECL/PECL input or
single-ended CMOS/TTL input CompuScope 3200C. This setting must be configured at the factory and cannot
be modified in the field.
ON-BOARD MEMORY
The CompuScope 3200C card stores digital data in on-board acquisition memory, which is addressable through
the CompactPCI bus under software control.
The on-board memory is configured as a circular buffer, so it is possible to store both pre- and post-trigger data.
In other words, it is possible to wait indefinitely for a trigger event and then capture digital data from both before
and after this event.
The number of data words that can be captured into on-board memory is a function of the size of the memory
and input width. For example, a 2 MB model provides 2 million words of storage when the input is 8 bits wide.
The same model provides 512 K samples of memory with 32 bit word width.
TRANSFERRING DATA TO PC MEMORY
The CompuScope 3200C is fully capable of acting as a bus master to DMA captured data into user buffers.