isp1301_clear
isp1301_clear(isp, ISP1301_I2C_MODE_CONTROL_1, MC1_UART_EN);
isp1301_clear(isp, ISP1301_I2C_MODE_CONTROL_1, ~MC1_SPEED_REG);
isp1301_clear(isp, ISP1301_I2C_MODE_CONTROL_2, ~0);
isp1301_clear(isp, ISP1301_I2C_OTG_CONTROL_1, ~0);
isp1301_clear(isp, ISP1301_I2C_OTG_CONTROL_1, (OTG1_DM_PULLUP
isp1301_clear(isp, ISP1301_I2C_INTERRUPT_LATCH, ~0);
isp1301_clear(isp, ISP1301_I2C_INTERRUPT_FALLING, ~0);
isp1301_clear(isp, ISP1301_I2C_INTERRUPT_RISING, ~0);
isp1301_clear(isp, ISP1301_I2C_OTG_CONTROL_1, OTG1_VBUS_DRV);