VR_CR0
VR_SETBIT(sc, VR_CR0, VR_CR0_TX_GO);
CSR_WRITE_1(sc, VR_CR0,
cmd = CSR_READ_1(sc, VR_CR0);
CSR_WRITE_1(sc, VR_CR0, cmd);
VR_SETBIT(sc, VR_CR0, VR_CR0_TX_GO);
cmd = CSR_READ_1(sc, VR_CR0);
CSR_WRITE_1(sc, VR_CR0, cmd);
CSR_WRITE_1(sc, VR_CR0, cmd | VR_CR0_RX_GO);
cmd = CSR_READ_1(sc, VR_CR0);
CSR_WRITE_1(sc, VR_CR0, cmd);
cmd = CSR_READ_1(sc, VR_CR0);
cmd = CSR_READ_1(sc, VR_CR0);
CSR_WRITE_1(sc, VR_CR0, cmd);
cmd = CSR_READ_1(sc, VR_CR0);
CSR_WRITE_1(sc, VR_CR0, VR_CR0_STOP);
cr0 = CSR_READ_1(sc, VR_CR0);