MT9V034 datasheet(21/62 Pages) ONSEMI

21 / 62 page

MT9V034_DS Rev.G Pub. 4/15 EN

©Semiconductor Components Industries, LLC,2015.

MT9V034: 1/3-Inch Wide-VGA Digital Image Sensor

Two-Wire Serial Interface Sample Read and Write Sequences

Real-Time Context Switching

In the MT9V034, the user may switch between two full register sets (listed in Table 7) by

writing to a context switch change bit in register 0x07. This context switch will change all

registers (no shadowing) at the frame start time and have the new values apply to the

immediate next exposure and readout time (frame n+1), except for shutter width and

V1-V4 control, which will take effect for next exposure but will show up in the n+2 image.

Table 7:

Real-Time Context-Switchable Registers

Column Start

0x01

0xC9

Row Start

0x02

0xCA

Window Height

0x03

0xCB

Window Width

0x04

0xCC

Horizontal Blanking

0x05

0xCD

Vertical Blanking

0x06

0xCE

Coarse Shutter Width 1

0x08

0xCF

Coarse Shutter Width 2

0x09

0xD0

Coarse Shutter Width Control

0x0A

0xD1

Coarse Shutter Width Total

0x0B

0xD2

Fine Shutter Width 1

0xD3

0xD6

Fine Shutter Width 2

0xD4

0xD7

Fine Shutter Width Total

0xD5

0xD8

Read Mode

0x0D [5:0]

0x0E [5:0]

High Dynamic Range enable

0x0F [0]

0x0F [8]

ADC Resolution Control

0x1C [1:0]

0x1C [9:8]

V1 Control – V4 Control

0x31 – 0x34

0x39 – 0x3C

Analog Gain Control

0x35

0x36

Row Noise Correction Control 1

0x70 [1:0]

0x70 [9:8]

Tiled Digital Gain

0x80 [3:0] – 0x98 [3:0]

0x80 [11:8] – 0x98 [11:8]

AEC/AGC Enable

0xAF [1:0]

0xAF [9:8]

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