STAR home  
TPC Readout Board PROM Versions
  Maintenance
  Last modified: 11:19 Tuesday 01-Jun-1999


RDO Master Ext.
#1 Inner F30 T30 S10 MUX X22
#2 " F33 " " " X23
#3 Outer F31 " " " X21
#4 " " " " " "
#5 " " " " " "
#6 " " " " " "

Current PROM versions (25-MAY-1999).


RDO Master Ext.
#1 Inner F24 T26 S10 MUX FX5
#2 " F25 " " " FX6
#3 Outer F21.5 " " " FX2
#4 " " " " " "
#5 " " " " " "
#6 " " " " " "

Previous PROM loading (18-APR-1999).


Some unofficial comments on PROM versions:

T26: Some Xilinx groups at the end of an RDO extension started one cycle out of phase, causing bus contention.
T27: Fixed the bus contention problem, but 1/4 of the RDO's showed header-length errors.
T28: Fixed the header-length errors, but there is still a problem that about 1/12 of the boards return a corrupt token, part, or all, of the time.
T29: Not distributed.
T30: Hopefully, fixes the corrupt token problem.

F21.3: High/low word convention problem; one group of 16 channels repeats.
F21.5, F24, F25, FX2, FX5, FX6: Data output enable longer than necessary, leading to some data corruption.