I'm developing with the ATZB-900-B0 and SerialNet, and am having problems with serial interfacing. The datasheet (8227C-MCU Wireless-06/09) insists that the module transmits with TxD (output) on pin 13 and receives with RxD (input) on pin 14. But the modules I have stubbornly transmit on pin 14 and receive on pin 13.
Of course my assumption has been that I have mis-read the datasheet, mis-interpreted the signal directions or something else, but everything I try seems to confirm that the datasheet is wrong. This seems so unlikely to me, especially as I can find no reference to such a problem on Google.
Before I re-spin my board, can anyone else confirm whether the datasheet is correct, or whether I have to swap these signals?