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MT9V403 Datasheet(PDF) 6 Page - Micron Technology

Part No. MT9V403
Description  1/2-INCH VGA (WITH FREEZE-FRAME) CMOS ACTIVE-PIXEL DIGITAL IMAGE SENSOR
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Maker  MICRON [Micron Technology]
Homepage  http://www.micron.com
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MT9V403 Datasheet(HTML) 6 Page - Micron Technology

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1/2-INCH VGA (WITH FREEZE-FRAME) CMOS
ACTIVE-PIXEL DIGITAL IMAGE SENSOR
09005aef80c07280
Micron Technology, Inc., reserves the right to change products or specifications without notice.
MT9V403_DS.fm - Rev. B 1/04 EN
6
©2004 Micron Technology. Inc.
Table 3:
Determination of Frame Timing
NOTE:
N = number of rows in image
RT = row time
VB = vertical blanking rows (255 rows maximum); set in register 6
HB = horizontal blanking in SYSCLK cycles (255 maximum); set forth in register 6
Simultaneous Master Mode
There are two possible operation methods for mas-
ter mode: simultaneous master mode and sequential
master mode. One of these operation modes must be
selected via the two-wire serial interface. In simulta-
neous master mode the exposure period occurs during
readout. The frame synchronization waveforms are
shown in Figure 6 and Figure 7. This is the fastest
mode of operation since the exposure and readout are
happening in parallel rather than sequentially. Please
note that with this speed optimized timing the first row
readout is the last row of the previous frame that is still
in the row memory.
Figure 6: Simultaneous Master Mode Frame Synchronization Waveforms
readout time > exposure time
NOTE:
Vertical blanking is nominally 1 SYSCLK and 0 row times, and may be increased by using register 6.
Figure 7: Simultaneous Master Mode Frame Synchronization Waveforms
exposure time > readout time
NOTE:
Vertical blanking is nominally 1 SYSCLK and 0 row times, and may be increased by using register 6.
EXPOSURE TIME > READOUT TIME
READOUT TIME > EXPOSURE TIME
No Blanking
Frame Time = Exposure Time
Frame Time = N x RT
With Vertical Blanking
Frame Time = Exposure Time + VB
Frame Time = (N + VB) x RT
Vertical Blanking
EXPOSE
(output)
FRAME_VALID
(output)
ROW_VALID
(output)
DATA [9:0]
(output)
Exposure Time
XXX
XXX
Row
2
Row
1
Row
N
Row
N-1
Row
479
Row
478
Row
481
Row
1
Row
2
XXX
XXX
XXX
Row
480
Row
N
Row
N-1
Row
479
Row
478
XXX
Row
480
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Vertical Blanking
EXPOSE
(output)
FRAME_VALID
(output)
ROW_VALID
(output)
DATA [9:0]
(output)
Exposure Time
XXX
XXX
Row
2
Row
1
Row
479
Row
478
Row
1
Row
2
Row
480
Row
479
Row
478
Row
480
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Row
481


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