SNAU290 November 2024 LMK3H0102
| Bit | Field | Type | Reset | Description |
|---|---|---|---|---|
| 15 | Reserved | R/W | 0x0 | Reserved. Only write '0' to this bit. |
| 14:11 | PROD_REVID | R | 0x0 | Product revision identifier. |
| 10 | CLK_READY | R | 0x0 | CLK_READY status. The REF_CTRL pin mirrors this status signal when the pin functions as a "clock ready" signal. |
| 9 | Reserved | R | 0x0 | Reserved. Do not write to this field. |
| 8 | RB_PIN_15 | R | 0x0 | Readback of the REF_CTRL pin. |
| 7 | RB_PIN_4 | R | 0x0 | Readback of the OTP_SEL1/SDA pin. |
| 6 | RB_PIN_3 | R | 0x0 | Readback of the OTP_SEL0/SCL pin. |
| 5 | RB_PIN_2 | R | 0x0 | Readback of the FMT_ADDR pin. |
| 4 | DEV_IDLE_STATE_SEL | R/W | 0x1 | This bit controls the behavior of the device when both outputs are disabled. Placing the device into a low-power state is not recommended for PCIe applications, as the time to re-enable the clocks is extended. This field is stored in the EFUSE. 0h: When both outputs are disabled, the outputs are muted, and the device is placed into a low-power state. 1h: When both outputs are disabled, the outputs are muted. The device does not enter a low-power state. |
| 3 | PIN_RESAMPLE_DIS | R/W | 0x0 |
This bit controls the resampling of the device pins when exiting the low power mode. Write this bit while in the low power mode. TI recommends keeping this bit as a '1' unless the functionality is explicitly desired. After PDN, pins 2, 3, 4, and 15 are resampled. Device functionality can change based on new logic level of the pins. 0h: Pin resampling is enabled. When exiting the low power mode, the FMT_ADDR, OTP_SEL0/SCL, OTP_SEL1/SDA, and FMT_ADDR pins are resampled. If FMT_ADDR is high, the device enters OTP Mode. 1h: Pin resampling is disabled. When exiting the low power mode, the FMT_ADDR, OTP_SEL0/SCL, OTP_SEL1/SDA, and FMT_ADDR pins are not resampled. The device remains in I2C Mode. |
| 2 | OTP_AUTOLOAD_DIS | R/W | 0x0 |
This bit controls the behavior of the device when exiting the low power mode. Write this bit while in the low power mode. TI recommends keeping this bit as a '1' unless the functionality is explicitly desired. 0h: OTP autoload is enabled. When exiting the low power mode, the contents of OTP Page 0 are written to the device registers. 1h: OTP autoload is disabled. When exiting the low power mode, the contents of OTP Page 0 are not written to the device registers. |
| 1 | PDN | R/W | 0x0 | Writing a '1' to this bit puts the device into a low power state. |
| 0 | Reserved | R/W | 0x0 | Reserved, do not write to this field. |