18 March, 2003
Christos Zamantzas
3
Transmission of Data – Codeword
Preamble
Start
Ion Chamber Data
ADC data
Status
Padding
CRC
Data
min
max
Remarks
Ion.Chamber
72
80
9 Ion chamber data
ADC
64
80
8 or 10 bit ADC
per chamber
Position
0
24
3 extra bits per
chamber
Preamble
4
24
Used for clock synchronisation.
Start
0
16
Maybe extra S/S will not be needed.
Status*
8
16
Bits showing HT (High Tension).
CRC
17
33
More likely CRC-32 (i.e. 33 bits)
TOTAL
165bits
273bits