Usb Interface - SimCom SIM5215 Hardware Design

All camera pins can be configured for GPIOs by the AT command "AT+CCGSWT". These GPIOs also
support interruption operation if used as input pins. If these pins are configured for GPIOs, the sequence is
listed in the following table.
Table 20: GPIO configuration
Pin name
CAM_D2
CAM_D3
CAM_D4
CAM_D5
CAM_D6
CAM_D7
CAM_D8
CAM_D9
CAM_HSYNC
CAM_VSYNC
CAM_CLK
CAM_PCLK
CAM_RESET
CAM_STANDBY
Note: 1.We have tested several kinds of digital sensors, such as OV2640, OV7670，OV7725 and a NTSC/PAL digital video
decoder named AK8856. Software must be adjusted before users adopt other kinds of sensors.
2. Because of high bit rate on camera bus, pay attention to influence of junction capacitance of ESD component on clock
and data lines. Typically, the capacitance should be less than 10pF.
3. Pay attention to the polarity of power down pin in users' sensor before designing. Default polarity of
SIM5215A&SIM5216A is shown: LOW: normal operation
3.8

USB Interface

SIM5215&SIM5216 module contains a USB interface. This interface is compliant with the USB2.0
specification. The USB2.0 specification requires hosts such as the computer to support all three USB
speeds, namely low-speed (1.5Mbps), full-speed (12Mbps) and high-speed (480Mbps). USB charging and
USB-OTG is not supported.
Table 21: Electronic characteristic
Pin name Pin No.
SIM5215&SIM5216_Hardware Design_V2.02
GPIO No.
GPIO6
GPIO7
GPIO8
GPIO9
GPIO10
GPIO11
GPIO12
GPIO13
GPIO14
GPIO15
GPIO16
GPIO17
GPIO18
GPIO19
HIGH: power-down.
Input voltage scope( V )
Min Typ
41
Smart Machine Smart Decision
Max
2012-08-31