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70
Selenio X100
Installation and Operation Manual
Table 3-8
Inter-Station Control Data Format
Trigger Counter
b7
b6
b5
b4
b3
b2
b1
b0
Words
1
Word Number 34
1
1
1
35
36
37
The X100 only uses word number 30 for the transmission of the eight GPI trigger bits.
When a trigger condition is detected, the corresponding trigger bit (Q1-Q8) is set high;
otherwise it is set low. The trigger condition is dependent on the GPI trigger type that you
set. For example, if the Trigger is set to RisingEdge, only a rising edge detected at a
certain time (for example, at the start of a video frame) will be considered a valid trigger. Or
if the Trigger is set to Active High, a high level GPI signal will be considered as a valid
trigger.
The mappings of the GPI input/output ports to BT-1685 trigger bits are the following:
GPI 0
Q1
GPI 1
Q2
GPI 2
Q3
GPI 3
Q4
GPI 4
Q5
GPI 5
Q6
GPI 6
Q7
GPI 7
Q8
BT-1685 Insertion Setup Example
This example involves inserting BT-1685 packets on line 12 of 1080i59 video using GPI
triggers.
1
First configure each GPI input to Rising Edge for BT-1685 triggers:
a
Go to GPI and Rules Engine > GPI > GPI Direction and set all 8 GPIO Direction
options to Input.
b
At GPI and Rules Engine > GPI > GPI Input, set the following for each GPI Input To
Edit (GPIO 0 to GPIO 7):
i.
Event to BT1685 Control
Trigger Countdown
1
1
1
1
38
39
40
41
Status Bits
S8
S16
S7
S15
S6
S14
S5
S13
S4
S12
S3
S11
S2
S10
S1
S9
1
1
64
141
42
43
44-
108-
107
248
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