FCR Function Control Register. 0x40000800 0x00 0x400 registers FCTRL0 Register 0. 0x00 read-write USB_EXTCLK_SEL USB External Core Clock Select. 16 1 sys Generated clock from system clock. 0 dig Digital clock from a GPIO. 1 I2C0_SDA_FILTER_EN I2C0 SDA Glitch Filter Enable. 20 1 dis Filter disabled. 0 en Filter enabled. 1 I2C0_SCL_FILTER_EN I2C0 SCL Glitch Filter Enable. 21 1 dis Filter disabled. 0 en Filter enabled. 1 I2C1_SDA_FILTER_EN I2C1 SDA Glitch Filter Enable. 22 1 dis Filter disabled. 0 en Filter enabled. 1 I2C1_SCL_FILTER_EN I2C1 SCL Glitch Filter Enable. 23 1 dis Filter disabled. 0 en Filter enabled. 1 I2C2AF2_SDA_FILTER_EN I2C2 AF2 SDA Glitch Filter Enable. 24 1 dis Filter disabled. 0 en Filter enabled. 1 I2C2AF2_SCL_FILTER_EN I2C2 AF2 SCL Glitch Filter Enable. 25 1 dis Filter disabled. 0 en Filter enabled. 1 I2C2AF3_SDA_FILTER_EN I2C2 AF3 SDA Glitch Filter Enable. 26 1 dis Filter disabled. 0 en Filter enabled. 1 I2C2AF3_SCL_FILTER_EN I2C2 AF3 SCL Glitch Filter Enable. 27 1 dis Filter disabled. 0 en Filter enabled. 1 I2C2AF4_SDA_FILTER_EN I2C2 AF4 SDA Glitch Filter Enable 28 1 dis Filter disabled. 0 en Filter enabled. 1 I2C2AF4_SCL_FILTER_EN I2C2 AF4 SCL Glitch Filter Enable 29 1 dis Filter disabled. 0 en Filter enabled. 1 AUTOCAL0 Register 1. 0x04 read-write SEL Auto-calibration Enable. 0 1 dis Disabled. 0 en Enabled. 1 EN Autocalibration Run. 1 1 not Not Running. 0 run Running. 1 LOAD Load Trim. 2 1 INVERT Invert Gain. 3 1 not Not Running. 0 run Running. 1 ATOMIC Atomic mode. 4 1 not Not Running. 0 run Running. 1 GAIN MU value. 8 12 TRIM 150MHz HFIO Auto Calibration Trim 23 9 AUTOCAL1 Register 2. 0x08 read-write NFC_FWD_EN Enabled FWD mode for NFC block 0 1 NFC_CLK_EN Enabled the NFC blocks clock divider in Analog 1 1 NFC_FWD_TX_DATA_OVR FWD input for NFC block 2 1 XO_EN_DGL TBD 3 1 RX_BIAS_PD Power down enable for NFC receiver analog block 4 1 RX_BIAS_EN Enable the NFC receiver analog blocks 5 1 RX_TM_VBG_VABUS TBD 6 1 RX_TM_BIAS TBD 7 1 NFC_FWD_DOUT FWD output from FNC block 8 1 AUTOCAL2 Register 3. 0x0C read-write RUNTIME Automatic Calibration Run Time. 0 8