How many UARTs on A20?

[kbro]

I know the A20 SBC supports 8 UART interfaces, a 3 are available on the Debug, UEXT1 and UEXT2 connectors.  Some I assume are use for USB.  So my question is, how many are available for use through the GPIO-1, GPIO-2 and GPIO-3 interfaces, and where do they appear?  The A20-OLinuXino-MICRO user guide only talks in terms of Pxn signal names and processor pin numbers.

[JohnS]

In case no-one happens to know, you can get the datasheet and look up the answer.  It's on Olimex site and linux-sunxi site and net generally.

John