Raw Digi Reconstruction Housekeeping DAQ NOTES
Please see the UCSC BFEM Tracker User's Guide.
There are 26 layers in the BFEM tracker, 13 planes, and 14 trays.
Layers are numbered from 0 (zero) which is located in the back of the TKR - closest to the CAL.
Here is a picture of the cables and controllers as they are connected for the 2001 BFEM.
Here is a description of the tkre subpacket contents.
Later, in Tony's config and JJ's data, they will split nominally 12
front-end chips to the left-side cable and
13 to the right-side cable, EXCEPT for Y7 for which all 25 chips on Y7 will send data to the left (Cable 4).
Please see the page describing the reconRootData class.
TKR TEM Programming Guide rev 2.37
The EOF in the TKR subpacket has been modified from that used in the 1999 testbeam (which was: 0xbffebfff). Here is a note from Dave L. on 5/1/01:
"It's still in the same place and is part of the last 32-bit
word. Let's call the last long word "lastLong" and apply
some bitmasks to disect the fields:
1) lastLong & 0xfff00000 -> 0xbff0000 is new shorter EOF
2) lastLong & 0x000f0000 -> P=1..8 = Tkr FEE buffer ptr
3) lastLong & 0x0000ffff -> N=8..XX = Event length bytes
In particular, the N in step 3 should agree with the length
found in the ivte directory for that "tkre" subpacket."
