VS6502V015/T2 STMicroelectronics, VS6502V015/T2 Datasheet - Page 28

• Manufacturer Part Number: VS6502V015/T2
• Description: SENSOR COLOR VGA CMOS SMOP
• Manufacturer: STMicroelectronics
• Type: CMOS Imagingr

Specifications of VS6502V015/T2

• Pixel Size: 5.6µm x 5.6µm
• Active Pixel Array: 644H x 484V
• Frames Per Second: 30
• Voltage - Supply: 2.6 V ~ 3.6 V
• Package / Case: SMOP2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-3884-1

I2C Register Description
4.4
Note:
4.4.1
4.4.2
28/48
Exposure Control Registers
A set of programmable registers controls the sensitivity of the sensor. The registers are as follows:
The gain parameter does not affect the integration period rather it amplifies the video signal at the
output stage of the sensor core.
The external exposure (coarse, fine, clock division or gain) values do not take effect immediately.
Data from the serial interface is read by the exposure algorithm at the start of a video frame. If the
user reads an exposure value via the serial interface then the value reported is the data as yet
unconsumed by the exposure algorithm, because the serial interface logic locally stores all the data
written to the sensor.
Between writing the exposure data and the point at which the data is consumed by the exposure
logic, bit 0 of the status register is set. The gain value is updated a frame later than the coarse, fine
and clock division parameters, since the gain is applied directly at the video output stage and does
not require the long set up time of the coarse and fine exposure and the clock division.
The range of some parameter values is limited and any value programmed out of this range will be
clipped to the maximum allowed.
[32-33] - Fine Exposure
[34-35] - Coarse Exposure
Fine exposure
Coarse exposure time
Analogue gain
Clock division
32 [1:0]
33 [7:0]
34 [1:0]
35 [7:0]
Bits
Bits
Fine Exposure [9:8]
Fine Exposure [7:0]
Coarse Exposure [9:8]
Coarse Exposure [7:0]
Function
Table 22: [34] - [35]- Coar
Function
Table 21: [32]-[33] - Fine Exposure
00000000
Default
Default
00
se
Exposure
Default value is maximum for mode
VGA = 522
Comment
Comment
VS6502