ASX340AT_16 Datasheet, PDF (18/54 Pages) ON Semiconductor – 1/4‐inch Color CMOS NTSC/PAL Digital Image SOC

ASX340AT
SYSTEM CONFIGURATION AND USAGE MODES
How a camera based on the ASX340AT will be
configured depends on what features are used. There are
essentially three configuration modes for ASX340AT:
Auto-Config Mode, Flash-Config Mode, and Host-Config
Mode. Refer to System Configuration and Usage
ASX340AT
Auto-Config Mode
Analog Out
Digital Out
Figure 12.
ASX340AT
SPI
Serial
EEPROM/Flash
ASX340AT
SPI
Serial
EEPROM/Flash
External device
Figure 14.
System
Bus
8/16 bit ∝C
Two−wire
Serial
ASX340AT _EEPROM/Flash
SPI
Figure 15.
Figure 13.
System Bus
8/16 bit ∝C
Two−wire
ASX340AT
MULTICAMERA SUPPORT
Two or more ASX340AT sensors may be synchronized to
a frame by asserting the FRAME_SYNC signal. At that
point, the sensor and video encoder will reset without
Decoder/DSP
Figure 16.
affecting any register settings. The ASX340AT may be
triggered to be synchronized with another ASX340AT or an
external event.
Dual Camera
CVBS
CVBS
System Bus
ASX340
F_SYNC
OSC ^{Camera 1}
ASX340
F_SYNC
1
mC
Camera 2
Figure 17. Multicamera System Block Diagram
www.onsemi.com
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