TRG

ALPHAT, the trigger control board for the ALPHA-g detector

References

• xxx

Control registers

Number	Name	Access	FwRev	Description
0	FwRev	RO		Firmware revision (0x01YYMMDD)

UDP data format

Offset	Name	Quartus name	FwRev	Description
0	packet counter	none	all	UDP packet counter. Automatically added by UDP transmitter code in the GRIFC base firmware
1	0x8 packet header		all	28 bits of counter_trig_out
2	trigger timestamp	trig_ts	all	62.5MHz trigger timestamp
3	accepted triggers	counter_trig_out	all	counter of accepted triggers
4	input triggers	counter_trig_in	all	counter of trigger input
5	pulser triggers	counter_pulser	all	counter of pulser triggers
6	trigger bitmap	udp_trig_bits	???	bitmap of trigger information, see below
7	nim bits	udp_nim_bits_masked	???	32 bits of ADC NIM inputs (2 bits per ADC)
8	esata bits	udp_esata_bits_masked	???	32 bits of ADC ESATA inputs (2 bits per ADC)
X
9	0x9 packet footer		all	28 bits of counter_trig_out

• trigger bitmap:

sss

End

//KO