No. 17S142-00
STC-HD853HDMI
Product specifications and User’s guide
68/81
8.5 DSP register mapping list
Note: Do NOT change “Reserved” Address on this register map.
Address
7
6
5
4
3
2
1
0
Descriptions
Default
000
X
ALC control
0: Disabled (Fixed shutter / Fixed gain)
1: Enabled (Auto exposure control setting / Gain control setting)
1
X
X
X
X
X
Reserved
-
X
Auto exposure control (AEE)
0: Fixed shutter
1: Auto exposure (AEE)
1
X
Auto gain control (AGC)
0: Fixed gain
1: Auto gain (AGC)
1
001
X
X
X
X
X
X
X
X
ALC Target level
100
002
0
0
0
0
X
X
X
X
ALC integration frame number
Automatic brightness control with average brightness of specified frames.
0: 1 frame (No average)
1: 2 frames
2: 4 frames
3: 8 frames
4: 16 frames
5: 32 frames
6: 64 frames
7: 128 frames
8: 256 frames
9: 512 frames
1
003
0
0
0
0
X
X
X
X
ALC rapid control frame number
Sets number of frame for ALC rapid control when power on camera or change
“Resolution/Frame rate”. ALC integration-frame number is disregard within this
frames.
0: 0 frame (No rapid control)
1: 1 frame
2: 2 frames
3: 4 frames
4: 8 frames
5: 16 frames
6: 32 frames
7: 64 frames
8: 128 frames
9: 256 frames
10: 512 frames
0
004
X
X
X
X
X
X
X
X
Exposure time [little-endian]
*
005
0
0
0
0
0
0
X
X
Range: 0 to 746
006
X
X
X
X
X
X
X
X
Minimum exposure time for AEE [little-endian]
746
007
0
0
0
0
0
0
X
X
Range: 0 to 746
008
X
X
X
X
X
X
X
X
Middle exposure time for AEE [little-endian]
0
009
0
0
0
0
0
0
X
X
Range: 0 to 746
00A
X
X
X
X
X
X
X
X
Maximum exposure time for AEE [little-endian]
0
00B
0
0
0
0
0
0
X
X
Range: 0 to 746
00C
X
X
X
X
X
X
X
X
AEE control tolerance
AEE stops when difference between “current brightness” and “ALC target level” is
smaller than this value.
3
00D
X
X
X
X
X
X
X
X
AEE control threshold
AEE starts when difference between “current brightness” and “ALC target level” is
greater than “AEE control tol AEE control threshold”.
6
00E
0
X
X
X
X
X
X
X
AEE control speed
Sets the maximum amount of exposure time change for AEE control.
(There is no limitation for maximum amount of exposure time when sets “0”)
0
00F
X
X
X
X
X
X
X
X
Reserved
-
