26 February 2004
Christos Zamantzas
5
Frameword
for Transmission
lFormatting of the frameword for transmission (256 bits)
lTransmission of frameword every 40μs.
qThe rate must be high enough to minimise the
total latency of the system .
lRedundant optical link
qIn order to increase the reliability of the
system.
Chamber(8)
data
CFC(8)
status
…
Chamber(2)
data
CFC(2)
status
Chamber(1)
data
CFC(1)
status
ADC(8)
12bit
…
ADC(2)
12bit
ADC(1)
12bit
ADC status
Frame ID
16bits
CRC-32
32bit
Pad
3bits
Status
10bits
ADC Data
96bits
Counter Data
72bits
Card No.
10bits
Start
16bits
Transmitted
Codeword
Counter data
ADC data