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5.5 UART host interface
The LS8688 supports a high speed Universal Asynchronous Receiver/Transmitter (UART) interface.
High speed baud rates are supported to provide the physical transport between the device and the
host for
wireless data connection. Customer can use AT command to control the module.
5.6 G-SPI host interface specifications
Referred from Marvell hardware specifications
G-SPI Host Interface Transaction Timing
5.7 Power supply description
The LS8688 contains a high efficiency DC/DC converter to reduce power consume and
simplified peripheral circuit design, external only need 3.3V voltage to input to pin 7 of
LS8688. the converter generate 1.8V voltage for core of 88W8688. The converter is
composed of XC9216A18MCR and inductor LQG15HS10NJ02, Efficiency >85%, Output
Current >400mA.