|The active S-LINK to VME64x board (TM4plus1) is a VME64x transition
module that has slots for four S-LINK link cards and has an integrated
Link Source Card. The S-LINK slots can fitted with any type of Link
Destination Card. The transition module fits
on the backside of the new
Extensions crates. It will be used whenever I/O has to be connected
to the back of a crate. Notably the ATLAS Read-out Driver and Read-out
Buffer devices can make use of this transition module.
The board has been designed to enable the ATLAS Tilecal detector to use the ATLAS LArg Read-Out Driver.
The VME64 Extensions crate uses 5-row connectors for P1 and P2, while
P3 is freely definable. For this application, also for P3 a 5-row connector
The S-LINK pin mapping has been designed for having low cross-talk and high signal quality. E.g. the clock lines are surrounded by ground pins and the signal lines need a minimal amount of crossings between the S-LINK and P2/P3 connectors. The S2VME64x is completely passive. It has series resistors in the signal lines to improve the signal quality. The S2VME64x is powered via the P2 connector and P3 connectors.
The transtion module features:
Top view (large), Bottom view (large, small)
Detail of integrated ODIN output (large, small)
|July 2000||First discussions about the active transition module|
|22 December 2000||Schematics design finished and reviewed. Still needs review from Altera
application engineer and NIKHEF.
PCB design will start end of January 2001
|22 February 2001||PCB design finished, final review still to be done.|
|5 March 2001||3 PCBs are ordered|
|5 April 2001||3 PCBs received. Will be sent for mounting of components on 19 April|
|29 May 2001||Mounted PCBs received.|
|22 December 2000||Altera VHDL skeleton written. Detailed implementation will be done by Tilecal|
|22 February 2001||Jose Castello passed at CERN to discuss Altera software needed.|
CERN - High Speed Interconnect
Erik van der Bij - 10 July 2001