SL869T3-I Product User Guide
1VV0301546 Rev. 3
Page 19 of 68
2021-03-31
4.13.2.2. DEEP SLEEP Mode (Vcc has been applied in the past, then
removed)
Entry: Vbatt is applied and Vcc has been previously applied to the module but is now
removed.
Exit: Apply Vcc.
4.14.
Serial I/O Ports
The module includes three serial ports and an I2C port.
4.14.1.
UART
The UART ports can be used for sending data and receiving commands.
4.14.2.
I2C
By default, the I2C port is not assigned an I/O function.