Dual channel I2C to UART HUB for Bluetooth

Hi All,

I have limited 3 UARTs available in my AM1808. I would like to use another UART for TIWI-R2 Bluetooth module. I have selected and used I2C to dual UART expander from EXAR part i.e XR20M1172IG28TR IC.

Could you have any related driver which I can access via i2c to uart, So that I can access all the Bluetooth commands over this i2c to uart interface.

Please find attached my schematic for interfacing this to my TIWI-R2.

Please need your suggestions..

Thanks,

Lofna