• Data are now output per TDC channel
• The Trigger TDC is allways channel 0
• The mapping between TDC and PETIROC is direct:
  • Channel 1 of TDC Channel 0 of PETIROC
  • ..
  • Channel 24 of TDC Channel 23 of PETIROC
  • It allows to extend easily the number of channels and will only force to resolder adapter boards

The output of a FEB now consists of:

• A Header packet :

^ Tag ^ Absolute BXID ^ GTC ^ 64/128 channels lengths^

 | 2 bytes| 6 bytes Readout time in 25 ns (81 j)  | 4 bytes | 64 or 128 bytes , # channels per TDC|