Half SPORT Works in Full Duplex Mode

Question

Hi there, 
 The chip we used is BF703. We use SPORT0_B as I2S mode to connect a codec. The codec provides the clock and frame sync. 
 
 Is that possible to use only SPORT0_B to transmit and receive simultaneously (full duplex)? 
 Like: 
 SPT0_BCLK - Clock (from codec) 
 SPT0_BFS - FS (from codec) 
 SPT0_BD0 - Data Out (to codec) 
 SPT0_BD1 - Data In (from codec) 
 
 I have read some topic and known that basically we should use SPT0_A as receiver and SPT0_B as transmitter, and physically connect the SPORT Rx CLK and FS signals to the respective pins on the SPORT transmitter. 
 Just want to know the half SPORT can reach our goal or not. 
 
 Thanks. 
 Ward

Divya.P · Accepted Answer

Hi Ward,

Unfortunately, it is not possible to transmit and receive simultaneously using half SPORT(SPORT0_B ). Each half SPORT supports up to two transmit or receive channels, thus allowing two unidirectional streams into or out of each half SPORT and providing greater flexibility for serial communications. If full-duplex functionality is desired, two SPORT halves can be combined to enable dual stream bidirectional communication".

Regards,
Divya.P