The GPS system is connected to RAPIDO ASIC.
Figure 44 Block diagram of the GPS system
The device supports USB 2.0 full speed, with micro-USB connector.
USB connection is implemented using the Application ASIC D4800 USB controller interface and N2300 EM
ASIC's USB transceiver. External interface is the micro-B connector. The interface between N2300 transceiver
and micro-B receptacle is standard USB interface specified Universal Serial Bus specification Rev. 2.0. The USB
transfers signal and power over four-wire interface. Interface carries differential data, Vbus and GND.
Signalling occurs over differential data line, D+ and D-. The clock is transmitted, encoded along with the
differential data. ESD protection is done with USB ASIP. VBUS (+5V) is provided by the host device.
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