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Unibrain Fire-i 52x/620/720/820 Operation Manual Page 36

active output, 1: High active output)

Delay_Value [8..19]

Delay after start of exposure until the

strobe signal asserts

Duration_Value [20..31]

Duration of the strobe signal

A value 0 means dessert at the end of

exposure function if required.

204h Strobe_1_Cnt Same definition to Strobe_0_Inq

208h Strobe_2_Cnt Same definition to Strobe_1_Inq

20Ch Strobe_3_Cnt Same definition to Strobe_2_Inq

210h

2FFh

Reserved

3.12. Trigger Delay Control

Based on external triggers users can delay image acquisition by the trigger delay control feature. Unibrain cameras

support the IIDC V1.31 specification for trigger delay control as per the following tables.

Trigger Delay Table

Trigger Delay Time : T

Trigger

Delay Index (Y)

Incremental

Step

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

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

534h TRIGGER_DLY_INQ

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

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 63 64

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