Datasheet

DES A
GPIO[n] Input
DES B
GPIO[n] Input
SER A
GPIO[n] Output
SER B
GPIO[n] Output
t1
|
|
ECU
Module
DS92LX1622
DS92LX1621
CMOS
Image
Sensor
I
2
C
I
2
C
PC
DS92LX1622
DS92LX1621
CMOS
Image
Sensor
I
2
C
I
2
C
Camera B
Camera A
DATA
PCLK
DATA
PCLK
FSYNC
FSYNC
GPIO GPIO
FSYNC
GPIO GPIO
FSYNC
DATA
PCLK
DATA
PCLK
FSO FSO
FSIN FSIN
Deserializer A
Serializer A
Deserializer B
Serializer B
DS92LX1621, DS92LX1622
www.ti.com SNLS327I –MAY 2010–REVISED JANUARY 2014
Figure 32. Synchronizing Multiple Cameras
Figure 33. GPIO Delta Latency
GENERAL PURPOSE I/O (GPIO)
The DS92LX1621 / DS92LX1622 has up to 6 GPIO (2 dedicated and 4 programmable). GPIO[0] and GPIO[1]
are always available and GPIO[2:5] are available depending on the parallel data bus size. DIN/ROUT[0:3] can be
programmed into GPIOs (GPIO[2:5]) when the parallel data bus is less than 12 bits wide (10-bit data + HS,VS).
Each GPIO can be configured as either an input or output port. The GPIO maximum switching rate is up to 66
kHz when configured for communication between Deserializer GPI to Serializer GPO. Whereas data flow
configured for communication between Serializer GPI to Deserializer GPO is limited by the maximum data rate of
the PCLK.
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Product Folder Links: DS92LX1621 DS92LX1622