RTL_W16
RTL_W16(IntrMask, intr_status);
RTL_W16(IntrStatus, intr_status &
RTL_W16(IntrStatus, intr_status &
RTL_W16(RxMaxSize, RxPacketMaxSize);
RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
RTL_W16(IntrMask, 0x0000);