PAUSE_RX
pause |= PAUSE_RX;
fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
unsigned int fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
if (fc & PAUSE_RX)
lc->requested_fc = lc->fc = PAUSE_RX | PAUSE_TX;
r = (fc & PAUSE_RX) ? 0x60200 : 0x20200; //QUANTA = 32*1024*8/512
pause = PAUSE_RX | PAUSE_TX;
pause = PAUSE_RX;
(fc & PAUSE_RX) ? F_TXPAUSEEN : 0);