RGE_CMD_RXENB
RGE_WRITE_1(sc, RGE_CMD, RGE_CMD_TXENB | RGE_CMD_RXENB);
RGE_READ_1(sc, RGE_CMD) & (RGE_CMD_TXENB | RGE_CMD_RXENB));
if (!ISSET(command, RGE_CMD_RXENB) || command == 0xff)