RXWRITE8
RXWRITE8(sc, CPUCP_REG_RX_EN, 0);
RXWRITE8(sc, CPUCP_REG_RX_CLEAR, 0);
RXWRITE8(sc, CPUCP_REG_RX_MAP, 0);
RXWRITE8(sc, CPUCP_REG_RX_MAP, CPUCP_MASK_CMD);
RXWRITE8(sc, CPUCP_REG_RX_EN, val);