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8
Camera Expansion Port
The Camera Eexpansion port on the MV0212 development board is intended to facilitate the connecnon of
either single or dual MIPI camera modules to the development board. This secnon describes this interface
and the features it supports.
OTE: All digital logic signal levels are based on 1.8V I/O logic unless otherwise specifed.
8.1
Camera Expansion Port Feature Overview
Power
Fiexed 5V supply
MIPI I/F
The CAM A interface supports a single MIPI CSI camera in either 1, 2 or 4 lane
confguranon.
The CAM B interface supports up to two MIPI CSI cameras each with either 1 or 2
MIPI lane support.
GPIO Signals
Each Camera interface has a two dedicated Myriad GPIOs, one of which has
support for GPIO_PWM output mode;
CAM_A_GPIO0 -> GPIO_59
CAM_A_PWM -> GPIO_27
CAM_B_GPIO0 -> GPIO_15 ( ote: Also opnonally UART_TX)
CAM_B_PWM -> GPIO_33 ( ote: Also opnonally UART_RX)
Control Bus
2 Pin I2C Interface (MV0212 is Master)
CAM_A uses I2C1 (dedicated)
CAM_B uses I2C0 (Shared only with LCD/AP I2C interface)
Clotk Sourte
Each Camera Interface has a dedicated clock source from the MV0212 CDCEL925
eexternal PLL (CAM_A_CLK_GEN, CAM_B_CLK_GEN).
Typically this clock source is used to provide a master clock to camera sensors.
COM_IO
Each camera interface shares 5 common GPIOS as part of the COM_IO bus.
The shared nature of these GPIOS is a compromise between the shortage of free
GPIOS on the overall design and the need for maeximum feexibility on Camera and
AP daughtercards.
Please see secnon 9.2 for important notes on the use of these pins.
CAM_A_IO_EXP
These are two dedicated general purpose Auexiliary I/O's which are available for
use by the camera interface. They are driven by the PMIC auexiliary I/O funcnon
CAM_B_IO_EXP
and control of these pins via sofware requires I2C communicanon from Myriad to
the PMIC. As such they are most useful for funcnons such as control of stanc
signals (e.g. reset)
Intel Movidius Confdennal
Table 10: Camera Expansion Port Feature Overview
27
Feature
User Manual (MV0212-UM-1.2)
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