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Unibrain Fire-i 501/511/601/701/702/810 Operation Manual Page 42
3.12. Trigger Delay Control
Based on external triggers users can delay image acquisition by the trigger delay control feature. Fire-i camera series
support the IIDC V1.31 specification for trigger delay control as per the following tables.
Trigger
Delay Index (Y)
Incremental
Step
Trigger Delay Time : T
Delay Time Range
1 ~ 500 1 us T = Y us 1us ~ 500 us
501 ~ 1000 10 us T = ( Y - 500 ) * 10 + 500 510 us ~ 5500 us
1001 ~ 1445 100 us T = ( Y - 1000 ) * 100 + 5500 us 5.6 ms ~ 50 ms
Trigger Delay Example Table
Index 1 10 100 500 550 650 950 1045 1145 1445
Time 1 us 10 us 100 us 500 us 1 ms 2 ms 5 ms 10 ms 20 ms 50ms
Inquiry Register
Address Name Field Bit Description
534h TRIGGER_DLY_INQ Presence_Inq [0] Presence of this feature
Abs_Control_Inq [1] Capability of control with absolute value
- [2] Reserved
One_Push_Inq [3] One push auto mode (Controlled
automatically by camera only once)
ReadOut_Inq [4] Capability of reading the value of this
feature
On/OFF_Inq [5] Capability of switching this feature ON and
OFF
Auto_Inq [6] Auto Mode (Controlled automatically by
camera)
Manual_Inq [7] Manual Mode (Controlled by user)
Min_Value [8..19] Minimum value for this feature control
Max_Value [20..31] Maximum value for this feature control
Status Control Register
Address Name Field Bit Description
834h TRIGGER_DELAY Presence_Inq
[0] Presence of this feature
0:N/A 1:Available
Abs_Control [1] Absolute value control
0: Control with value in Value field
1: Control with value in Absolute value
CSR if this bit =1, value in Value filed is
ignored
- [2..5] Reserved
On/OFF [6] Write : ON or OFF this feature
Read : read a status
0: OFF, 1:ON
If this bit=0, other fields will be read only.
- [7..19] Reserved
Value [20..31] Minimum value for this feature control