SLIDAS, an S-LINK Infinite Data Source

LDC-D-0/40-B/W-5.0-160

Photos: top, bottom, detail of switches
(Circuit no. 680-1110-500-A)

DESCRIPTION

The SLIDAS is a stand-alone device that connects to the S-LINK connector of a ROMB. Its purpose is to test the ROMB at its S-LINK interface without having to set up a real S-LINK just for this task.

With the SLIDAS, the user can select among a wide variety of data patterns to transfer to the ROMB. The data patterns are choosable in terms of contents, length, bandwidth and error contents.

Characteristics of the SLIDAS:

Data patterns: walking 1, walking 0, alternating FF/00, alternating AA/55, random data, Read-out Driver formats
Data length selectable between 0 and 8 Kwords
Frequency of LCLK is selectable between 0.5 Hz and 40 MHz
Emulation of errors in the data stream
LED indicators for all the S-link connector signals
Emulation of LDOWN via a switch
Three connectors allow viewing of data and control signals with a logic analyser. (The connectors have the same layout as on SLIBOX and on SLIDAD.)
Start/stop possible under program control with optional cable (URL0 emulates Start)
Versions with 3.3V and 5V power supply available
Data widths of 8, 16 or 32 bits

STATUS

Hardware

15 February 1997	First versions of the PCB (680-1110-500) have been manufactured
28 February 1997	Version 1.0 of SLIDAS has been released.
11 April 1997	Version 2.0 of SLIDAS has been released. Fully functional ATLAS TRT ROD dataformat implemented
15 April 1997	Design files transferred to INCAA. Commercial production started
14 Aug 1997	Two boards received from INCAA. SLIDAS commercially available now
28 June 1999	Modifications will be made to reflect the latest ATLAS ROD dataformat and to add features for Read-Out Buffer performance testing
3 September 1999	Latest ATLAS ROD dataformat implemented. SLIDAS can send now datablocks at frequencies between 25 KHz and 150 KHz and has a built in trigger-counter.
January 2001	Being redesigned for 3V3 operation by NIKHEF
2 March 2001	CERN received 3V3 modified boards from NIKHEF for testing

Software

	The SLIDAS is a stand-alone hardware device. No software is needed
28 October 1997	Added C-function in documentation that calculates the random data as generated by SLIDAS

DOCUMENTATION

CERN Engineering Data Management System (EDMS)

S-LINK project

SLIDAS

CONTACTS

Sales: INCAA Computers
Designer 1: Philippe Brodier-Yourstone (left CERN)
Designer 2: Gillian Damerell (left CERN)
S-LINK project leader: Robert McLaren
S-LINK coordinator: Erik Van der Bij
3.3V conversion: Gerard Kieft, Peter Jansweijer - NIKHEF

CERN - High Speed Interconnect - S-LINK
Erik Van der Bij - 2 March 2001 - Copyright