Camera interfaces
217
Alvium CSI-2 Cameras User Guide V2.8.1
Alvium GPIOs feature the CMOS push-pull output drivers and Schmitt trigger
inputs with an internal pull-up resistor and a filter circuit, shown in
. The
push-pull GPIOs are able to source or sink current from an external pin.
Input levels
The GPIOs can be connected directly to the system controlling the camera for
voltages up to 5.5 VDC. An external resistor is not necessary.
Figure 85: GPIOs block diagram
NOTICE
Damage to the camera by high input voltage
Exceeding maximum input voltage can damage the camera.
Keep maximum input voltage below 5.5 VDC.
Parameter
Value
U
in
(low)
-0.3 to 0.8 VDC
U
in
(high)
2.0 to 5.5 VDC
Undefined levels
0.8 to 2.0 VDC
Table 110: GPIOs as input, voltage levels
Pullup
3.3V
Pad
Inpu t enable
Inpu t
Outpu t enable
Schmi
Ʃ
Schmi
Ʃ
Outpu t
GPIOs : 2, 3
Pins: 5, 6
ALVIUM
CMOS
CMOS
Non-isolated GND
Pins: 10, 13, 16, 19, 22
Internal
External
