M64283FP View Datasheet(PDF) - MITSUBISHI ELECTRIC

Part Name

Description

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M64283FP

Image Sensor (Artificial Retina Chip)

MITSUBISHI ELECTRIC  

Semiconductor Technical Data

MITSUBISHI

Mitsubishi Integrated Circuit <Linear IC>

M64283FP

Image Sensor (Artificial Retina Chip)

"H", and those, address 8 and 9, become valid on the same edge when LOAD is "H" and TADD is "L".

After all the registers have been written, image capture starts when START is input on the rising edge of

XCK. Two modes are available for image capture, i.e., one is an accumulation mode, which accumulates

the input image signal (optical signal), and an image output mode which converts the optical signal into

electrical signal and output the results. When the exposure time specified by the registers C0 and C1 has

passed, an analog image signal is output in serial. READ becomes "H" when analog image signal is

output. At this moment, all the registers can be rewritten because the exposure time and the image

capture mode are stored in the internal control registers of the chip.

When image capture has started, the image signal is supposed to be output until the chip is reset.

12.2. The programming model

Parameter and Function

Image capture mode

Exposure time

Gain

Output pin voltage (Vref)

Enable edge

enhancement/extraction mode

Vertical/Horizontal edge

extraction

Edge enhancement mode

Output inversion mode

Enable automatic

black level* calibration

Enable black level calibration

Enable dark pixel line output

Offset voltage

Enable clamp circuit

Enable sample hold circuit

Enable projection

Projection output control

Random access

start address

Random access

stop address

Symbol

P,M,X

C0,C1

G

V

N

VH

E

I

AZ

Z

OB

O

CL

SH

PX,PY

MV

ST

END

Number of

bits

4bit×3

8bit×2

5bit

3bit

1bit

2bit

4bit

1bit

1bit

2bit

1bit

6bit

1bit

1bit

2bit

5bit

4bit×2

Description

Allows to select positive, negative, and edge image

capture modes manually

Program exposure time

Program gain of output amplifier.

Program bias voltage of output pin.

Enable the edge enhancement/extraction mode

forcibly "H" active

Allows to select vertical edge and horizontal edge

modes

Set the degree of edge enhancement

Allows to select an inversion mode "H" active

Enable automatic black level calibration with

unfixed bias voltage "H" active.

Black level calibration with fixed bias voltage.

Enable to output optical black level of dark pixel

line "L" active

Allows to change offset voltage of output signal

with positive/negative bias

Enable clamp circuit operation "L" active

Enable sample & hold circuit operation "L" active

Enable Vertical/Horizontal projection mode "H"

active

Allows to adjust projection signal amplitude

Specify random access start address by (x, y)

4bit×2

Specify random access stop address by (x', y')

* Black level shall be defined as output voltage from pixel in shading condition.

9/35

Specifications and information in this document are subject to change without notice.

Ver. 2. 2. 3

07/22/1998

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