TSAT-PCI-U-2 GPS Timing Board0 pages

Timecode & GPS Reader/Generator
Model TSAT-PCI-U-2

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Universal PCI bus signaling (3.3V and
5.0V/33 or 66 MHz)

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Autodetects IRIG-A, B, or NASA36 time code
inputs

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GPS synchronization

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±1µs accuracy to input

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Zero latency time reads

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Freewheel capability

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IRIG-B timecode generator

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External event time capture/interrupt

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Programmable frequency output/interrupt

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Programmable alarm output/interrupt

The board can synchronize to an external 1PPS in lieu of an incoming timecode. The
TSATPCI-U-2 provides precise, zero-latency time via the PCI bus on 33 and 66 MHz systems.
With a 32-bit data interface, the unit offers better than 1 µs data access. Universal signaling
allows the unit to function in either 5.0V or 3.3V backplanes.
The 10 MHz oscillator, central to the TSAT-PCI-U-2 timing functions, permits the board to
increment time (“freewheel”) based on the last known reference in the absence of an input
source. When the timing reference is reestablished, the board synchronizes automatically.
The TSAT-PCI-U-2 may be used as an IRIG-B timecode generator. The user simply sets the
initial time through the PCI bus. A propagation delay offset may be speci ed to compensate
for cable delays. Other features include multiple event time-tag TTL inputs, a programmable
periodic pulse or “heartbeat,” and a programmable “alarm” start/stop time output.
Key to the TSAT-PCI-U-2 functionality is the ability to generate interrupts. With one of the
many available Spectracom driver packages, the user may con gure the card using
interrupt-driven algorithms that support our customers’ unique applications. The software
packages include a demonstration program to exercise the board’s functionality, as well as
a clock utility to synchronize the host system.

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UK | 6A Beechwood | Chineham Park | Basingstoke, Hants, RG24 8WA | +44 (0)1256 303630 | info@spectracom.co.uk

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USA | 1565 Jefferson Road, Suite 460 | Rochester, NY 14623 | +1.585.321.5800 | sales@spectracomcorp.com

. . . quality

PCI-X compatible

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The TSAT-PCI-U-2 is a complete GPS synchronized timecode reader/generator package that
includes the GPS receiver and antenna. When con gured as a timecode unit, the input
timecode format (IRIG-B, IRIG-A, or NASA36) is automatically detected and synchronization
to the input timecode is automatic, enabled/disabled through the PCI bus.

O 9001

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PCI local bus operation

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