Product Info

Wi-Fi&BT Module Series
AF50T Hardware Design
AF50T_Hardware_Design 23 / 52
If BT function of AF50T module is used, the UART and PCM interfaces of AF50T must be connected to
that of AG55xQ series module.
Figure 7: Block Diagram of BT Interface Connection
3.6.1. BT_EN
BT_EN is used to control the BT function of AF50T module. BT function will be enabled when BT_EN is at
high level.
Table 7: Pin Definition of BT_EN
Pin Name Pin No. I/O Description Comment
BT_EN 83 DI BT enable control Active high.
3.6.2. PCM Interface*
The following table shows the pin definition of PCM interface.
Table 8: Pin Definition of PCM Interface
Pin Name Pin No. I/O Description Comment
PCM_DIN 76 DI PCM data input 1.8 V power domain
PCM_SYNC 35 DI PCM data frame sync 1.8 V power domain
PCM_CLK 37 DI PCM clock 1.8 V power domain
PCM_DOUT 36 DO PCM data output 1.8 V power domain
The following figure shows the PCM interface connection between AF50T and AG55xQ series modules.