lm9831 National Semiconductor Corporation, lm9831 Datasheet - Page 16

• Manufacturer Part Number: lm9831
• Description: 42-bit Color, 1200dpi Usb Image Scanner
• Manufacturer: National Semiconductor Corporation

Address
DIGITAL PIXEL RATE OFFSET AND GAIN SETTINGS
DIGITAL PIXEL RATE OFFSET AND GAIN/DRAM SETTINGS
3E
3F
40
41
42
Fixed Offset Coefficient - MSB
Fixed Offset Coefficient - LSB
Fixed Multiplier Coefficient - MSB
Fixed Multiplier Coefficient - LSB
Shading Multiplier
Multiplier Coefficient Source
Offset Coefficient Source
Reserved
DRAM Size
Function
D
7
n n n n n n n n
n n n n n n 0 0
n n n n n n n n
n n n n n n n n
D
0
1
6
D
1 0
5
D
4
16
D
3
D
0
1
2
D
0
1
1
D
0
0 Gain = [Multiplier Coefficent]/16384
1 Bypass Multiplier
Fixed Offset to use for calibration
Fixed Gain to use for calibration
Configuration Register 40 and 41 (Fixed)
External DRAM
Configuration Register 3E and 3F (Fixed)
External DRAM
Set to 10
256k x 16
1M x 16
Value
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