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PCI Digitizer, VME TDC, PCI VME Master, Data Acquisition System

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  • DataFormatUT24VE-TRC

UT24VE-TRC Data Format

Hardware UT24VE-TRC

UT24VE-TRC payload data is encapsulated in M-Stream 2.2 protocol using Data Subtype 0.

M-Stream Header

word #

byte offset

bits

description

0

0

31:24

Device ID

23:18

Flags

17:16

Subtype

15:0

Fragment length, 4*(N-2)

1

4

31:16

Packet ID

15:0

Fragment offset (bytes)

M-Stream Subtype 0

2

8

31:0

Device Serial

3

12

31:24

reserved

23:0

Event number

M-Stream Payload in MPD rawdata

4

16

31:0

Event timestamp, TAI seconds

5

20

31:2

Event timestamp, TAI nanoseconds

1:0

Event timestamp, TAI flags

6

24

31:0

Input signal states, after reduction

7

28

31:0

Input signal states, before reduction

8

32

31:0

Input signal states timeline (like binary waveform)

...

N-1

4*(N-1)

31:0

The first 16 bits in 'Input signal states' corresponds to physical inputs in UT24VE device, the second ones to auxiliary (UT24VE-TRC-AUX-Сhannels).


RawData UT24VE