WM8144-10 Wolfson Microelectronics Ltd., WM8144-10 Datasheet - Page 22

• Manufacturer Part Number: WM8144-10
• Description: Integrated 10-bit Data Acquisition System For Imaging Applications
• Manufacturer: Wolfson Microelectronics Ltd.

WM8144-10
Configuration of the WM8144-10 (Contd.)
Table 7: Control Bit Descriptions
22
Register
Setup
Register 1
Setup
Register 2
Setup
Register 3
Setup
Register 4
Bit No
1-0
3-2
5-4
7-6
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
1
CDSREF1-0
CDATOUT
LATCHOP
DVMODE
CHAN1-0
DACRNG
VSMP6M
BYPASS
PWP1-0
MUXOP
ENADC
DEFPG
DEFPO
DEFDV
RLC1-0
MONO
INVOP
Bit(s)
CDS
Wolfson Microelectronics
Default Description
01
00
01
00
1
1
0
1
1
0
0
0
0
0
0
0
0
0
ADC standby control: 0 = standby, 1 = active
Select Correlated double sampling mode: 0 = normal sampling, 1 =
CDS mode
Mono/Colour select: 0 = colour, 1 = monochrome operation
Select Default Pixel Gain: 0 = external pixel gain, 1 = internal
Select Default Pixel Offsets: 0 = external pixel offsets, 1 = internal
Select default internal Data Valid: 0 = external DV, 1 = internal
Required when VSMP at 6MSPS: 0 = other mode, 1 = VSMP at 6MSPS
External Data Valid control (refer to Bit Allocation Assignment table)
Eight bit output mode: 0 = ten-bit, 1 = 8-bit multiplexed
Inverts ADC output: 0 = non-inverting, 1 = inverting
OP bus updated on DV pulse; OP bus updated each sample, 1 = update
only on DV pulse
Bypass digital post-processing; 0 = no bypass, 1 = bypass
Data on OP pins available on CDAT pins; 0 = no, 1 = yes
Reset Level Clamp voltage
00 = 1.5V
01 = 2.5V
10 = 3.5V
11 = Reserved
Parallel Word Partitioning
See Bit Allocation Assignment (Table 3)
CDS Mode Reset Timing Adjust
00 = Advance 1 MCLK Period
01 = Normal
10 = Retard 1 MCLK Period
11 = Retard 2 MCLK Period
Monochrome mode channel select
00 = Red Channel
01 = Green Channel
10 = Blue Channel
11 = Reserved
Alters range of offset DAC output
0 = DAC output range equal to Vmid/2 (1.25V)
1 = DAC output range equal to 1.5 * Vmid/2 (1.875V)