MAC_HALF_DUPLX_CTRL_NO_BACK_P
#define MAC_HALF_DUPLX_CTRL_NO_BACK_P 0x40000 /* No back-off on backpressure,
#define MAC_HALF_DUPLX_CTRL_NO_BACK_P 0x40000 /* 1: No back-off on backpressure, immediately start the transmission after back pressure */
#define MAC_HALF_DUPLX_CTRL_NO_BACK_P 0x40000