CSR_SETB_2
CSR_SETB_2(sc, ACXREG_ECPU_CTRL, ACXRV_ECPU_HALT);
CSR_SETB_2(sc, ACXREG_EEPROM_INIT, ACXRV_EEPROM_INIT);
CSR_SETB_2(sc, ACXREG_GPIO_OUT, sc->chip_gpio_pled);