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3.3.
Low-Power Modes
The L80 features two low-power modes: Sleep Mode and Stop Mode.
3.3.1.
Sleep Mode
While using the RS232 interface, Sleep Mode is controlled by a timeout after the L80 is idle for a
specified time (default is 120s). While using the USB interface, Sleep Mode is controlled by the USB
suspend and resume signals. Sleep Mode is used for battery-operated and solar-powered systems. It
reduces power consumption to a much lower level (<2.5mA for all connection types) than full-power
mode (200 mA) but leaves the device able to be woken up by key press or communication from the
host.
3.3.1.
Stop Mode
Stop Mode is controlled by the application through a specific command. Stop Mode reduces power
consumption to the lowest possible level (<1mA). An L80 in Stop Mode can only be woken up by a
physical key press.
3.4.
Bootloader Functions
The firmware can be upgraded via USB/RS-232 port (Baud rate is 115200).
For detailed information, please refer to document P/N 80000420-001,
Bootloader Firmware
Specification (V52).doc
.