OV5017 데이터 시트보기 (PDF) - Omnivison Technologies

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OV5017

Single chip 1/4 video image sensor

Omnivison Technologies 

OMNIVISION TECHNOLOGIES, Inc.

OV5017

Confidential Preliminary Product Specification

Table 3. Bit descriptions (Continued)

Register

Name

EXCTL

Bit name

AUTO

Range

EXCTL[7]

EX

EXCTL[6:0]

GCTL

GN

GCTL[2:0]

FRCTL

FDIV

FRCTL[5:0]

MCTL

HWCTL/

VWCTL

GAMA

MIR

NSR

BKL

FZEX

PCKS

PCKI

BPSHP

HWS

HWE

VWS

VWE

MCTL[7]

MCTL[6]

MCTL[5]

MCTL[4]

MCTL[3]

MCTL[2]

MCTL[1]

MCTL[0]

HWCTL[7:4]

HWCTL[3:0]

VWCTL[7:4]

VWCTL[3:0]

Function

Enables auto exposure. To select auto exposure mode, set this bit. To

select manual exposure mode, clear this bit.

Sets the exposure time, where 7fh is the 1/50s, and 00h is the 1/

(50*128*2)s. This register is used in manual exposure mode only.

After updates are made to this register, it takes two frames for the

chip to become stable.

Selects the post amplifier gain, where 111 is the 18dB gain and 000 is

the 0dB in a linear relationship. This register is used in manual expo-

sure mode only. After updates are made to this register, it takes two

frames for the chip to become stable.

Divides the frame rate by 1 to 64 in steps of 1 by using this formula:

Frame Rate = F0 / (FDIV+1)

Pixel Rate = fosc / [(FDIV +1)*2]

where fosc is the main clock frequency of XCLKi

F0 = fosc / (458*625); F0=50 @ 14.318Mhz

After updates are made to this register, it takes two frames for the

chip to become stable.

Set this bit to select gamma = 0.45, and clear this bit for gamma = 1.

Set this bit to select mirror image.

Set this bit to turn on indoor mode, and clear for outdoor mode.

Set this bit to turn on backlight compensation.

Set this bit to freeze the exposure setting. This works in auto expo-

sure mode; it has no effect in manual exposure mode.

Clear this bit to output continuous pixel clock to PCLK; set to output

pixel clock only during the valid pixel window

Set this bit to inverse the polarity of PCLK.

Set this bit to disable sharpness function.

Selects the start of the horizontal window.

Selects the end of the horizontal window.

Selects the start of the vertical window.

Selects the end of the vertical window.

8

Version 1.6

October 20, 1997

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