ZHCSR16 September 2022 TPS544C26
ADVANCE INFORMATION
| Register Address | 02h |
| Write Transaction: | Write Byte |
| Read Transaction: | Read Byte |
| Format: | Unsigned Binary (1 byte) |
| NVM Back-up: | EEPROM |
| Updates: | On-the-fly |
The ON_OFF_CONFIG command configures the combination of enable pin input and serial bus commands needed to enable/disable power conversion. This includes how the unit responds when power is applied to PVIN.
Return to Supported I2C and Default Values.
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| R/W | R/W | R/W | R | R | R | R | R |
| ON_OFF_CONFIG | Reserved | ||||||
| LEGEND: R/W = Read/Write; R = Read only |
| Bit | Field | Access | Reset | Description |
|---|---|---|---|---|
| 7:5 | ON_OFF_CONFIG | R/W | NVM | These bits determine the on-off mechanism as follow: 000b: Power conversion is always ON 001b: Turn power conversion ON/OFF by I2C Operation Command only 010b: Turn power conversion ON/OFF by EN pin only 011b: The power conversion is not turned ON until commanded by the EN pin and OPERATION command. The power conversion can be turned OFF either commanded by the EN pin or OPERATION command 100b to 111b: Reserved. The device always acknowledges a write with this value but does not change the operation state. |
| 4:0 | Reserved | R | 00000b | Not used and always set to 0. |
Attempts to write ON_OFF_CONFIG to any value other than those explicitly listed above will be considered invalid/unsupported data and cause the TPS544C26 to respond by flagging the appropriate status bits, and notifying the host according to the PMBus 1.3.1 Part II specification, section 10.9.3.