Product Info

Wi-Fi&BT Module Series
AF50T Hardware Design
AF50T_Hardware_Design 24 / 52
Figure 8: PCM Interface Connection
“*” means BT PCM interface of AF50T is still under development.
3.6.3. UART Interface
The following table shows the pin definition of UART interface.
Table 9: Pin Definition of UART Interface
Pin Name Pin No. I/O Description Comment
BT_RTS 77 DO BT UART request to send 1.8 V power domain
BT_CTS 38 DI BT UART clear to send 1.8 V power domain
BT_TXD 39 DO BT UART transmit 1.8 V power domain
BT_RXD 78 DI BT UART receive 1.8 V power domain
The following figure shows the reference design for UART interface connection between AF50T and
AG55xQ series modules.
NOTE