ZHCSQY3 march 2023 TPS546D24S
PRODUCTION DATA
| CMD Address | 79h |
| Write Transaction: | Write Word |
| Read Transaction: | Read Word |
| Format: | Unsigned Binary (2 bytes) |
| Phased: | Yes |
| NVM Back-up: | No |
| Updates: | On-the-fly |
The STATUS_WORD command returns two bytes of information with a summary of the most critical faults, such as overvoltage, overcurrent, overtemperature, and so forth. The low byte of the STATUS_WORD is the same register as the STATUS_BYTE. The supported STATUS_WORD message content is described in the following table. The conditions in the STATUS_BYTE are summary information only.
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| R | R | R | R | R | R | R | R |
| VOUT | IOUT | INPUT | MFR | PGOOD | 0 | OTHER | 0 |
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| RW | R | R | R | R | R | R | R |
| STATUS_BYTE | |||||||
| LEGEND: R/W = Read/Write; R = Read only |
| Bit | Field | Access | Reset | Description |
|---|---|---|---|---|
| 15 | VOUT | R | 0b | 0b: An output voltage related fault has NOT occurred. 1b: An output voltage fault has occurred. The host must check STATUS_ VOUT for more information |
| 14 | IOUT | R | 0b | 0b: An output current related fault has NOT occurred. 1b: An output current fault has occurred. The host must check STATUS_ IOUT for more information |
| 13 | INPUT | R | 0b | 0b: An input related fault has NOT occurred. 1b: An input fault has occurred. The host must check STATUS_ INPUT for more information |
| 12 | MFR | R | 0b | 0b: A Manufacturer-defined fault has NOT occurred. 1b: A Manufacturer-defined fault has occurred. The host must check STATUS_ MFR_ SPECIFIC for more information. |
| 11 | PGOOD | R | 0b | LIVE (unlatched) status bit. Should follow always the value of the PGOOD/RESET_B
pin is asserted. 0b: The output voltage is within the regulation window. PGOOD pin is de-asserted. 1b: The output voltage is NOT within the regulation window. PGOOD pin is asserted. |
| 10 | Not Supported | R | 0b | Not supported and always set to 0b |
| 9 | OTHER | R | 0b | 0b: An OTHER fault has not occurred. 1b: An OTHER fault has occurred, the host must check STATUS_ OTHER for more information. |
| 8 | Not Supported | R | 0b | Not supported and always set to 0b. |
| 7:0 | STATUS_ BYTE | RW | 00h | Always equal to the STATUS_ BYTE value. |
All bits which can trigger SMBALERT have a corresponding bit in SMBALERT_MASK.
Writing 0080h to STATUS_WORD will clear the BUSY bit, if set. Writing 0180h to STATUS_WORD will clear both the BUSY bit and UNKNOWN bit, if set.