Start CSIH extended data reception by slave mode.
| This API function performs 2 byte-level CSIH reception the number of bits specified by the argument rx_num, and stores the data in the buffer specified by the argument rx_buf. | 
| Starts after this API function is called, and R_CSIHm_Start is then called. | 
| #include "r_cg_macrodriver.h" MD_STATUS R_CSIHm_Slave_Receive ( const uint16_t * rx_buf, uint16_t rx_bit_num ); |