Globalstar ST150 User Manual page 29

9150-0125-01 R-4
Pin
Digital I/O /
P0.28/AIN4
Analog input
Digital I/O /
P0.03/AIN1
Analog input
Digital I/O /
P0.02/AIN0
Analog input
USB_D- USB
USB_D+ USB
VUSB Power
GPS_EXT_LNA_EN Digital Output
VRF_EN Digital Output
I2C_SDA Digital I/O
I2C_CLK Digital Output
ST150M User Manual
Function
GPIO / Analog input
GPIO / Analog input
GPIO / Analog input
Differential USB data connection
Differential USB data connection
USB device +5V input
Control signal for external GPS LNA
Signal for indicating ASIC transmission
I C serial data
2
I C serial clock
2
Confidential & Proprietary Information
Description Recommended Usage
3.3V level, Standard drive, low
frequency I/O only
3.3V level, Standard drive, low
frequency I/O only
3.3V level, Standard drive, low
frequency I/O only
–
–
–
3.3V level
3V level
3.3V level
3.3V level
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