
SERIAL INTERFACE DEVELOPERS GUIDE 
Factory Bit Fields
Adr Entry Name Mode Initialize 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
66 Reticle B Short 0x00DC
Horizontal R/W
Position
68 Reticle B Byte 0x78 NTSC
Vertical R/W 0x80 PAL
Position
69 Reticle B Byte 0x00
Emissivity R/W
70 Reticle Short 0x0000
Radiometric R/W
Control
72 AGC Byte 0x0 2
Mode R/W 
73 Active Byte 0x00
ROI R/W 
Index
74 Reserved Short 0x0000
R/W 
76 Display Video Short 0x0000
Manual R/W 
Low Intensity
78 Display Video Short 0x3FFF
Manual R/W 
High Intensity
80 AGC H igh Short 0x3FF F
Limit R/W 
Intensity
Display Video Manual Low Inte nsity (Input Intensity Mapped to 0)
(0 to 16,383)
Agc
Mod
Act Roi
Indx
Reserved
Reserved
Reserved
Reserved
Reserved
Reticle B Vertical Position
Reticle B Horizontal PositionReserved
Reticle B Emissivity
( 0 to 1 -2
-8
)
Display Video Manual High Intensity (Input Intensity Mapped to 255)
(0 to 16,383)
Reserved
Tem
p
Unit
AGC Low Li mit IntensityReserved
Reticle Parameters: 
If Rtcl X En = 1, then Draw Reticle X at the Reticle X Horizontal / Vertical Position. 
If Reticle Emissivity is 0, Report Intensity on Overlay. 
If Reticle Emissivity is not 0 Report Temperature on Overlay. 
Reticle Radiometric Control: 
Temp Unit  0 – Display Temperatures in Fahrenheit; 
1 – Display Temperatures in Celsius 
AGC Mode: 
Agc Mod  0 – AGC/ALC Off (Hold Present State); 
1 – Manual Contrast Adjust; 
2 – Linear AGC/ALC; 
3 – Histogram AGC/ALC; 
  4 to 15 – Reserved 
Active ROI Index: 
Selects the Currently Active ROI Index (0 <= Act ROI Index <= 7). 
Use the Appropriate Op Mode Descriptor Table Values to Load the FPA Processor Registers. 
Display Video Manual Low / High Intensity Parameters: 
If Agc Mod = 1, then: 
Intensity Transform = (Input – Manual Low Intensity) * (255/(Manual High Intensity – Manual 
Low Intensity)). 
AGC Limit Intensity Parameters: 
See below.
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