JAJSLH7A December 2021 – November 2023 TPSM8D6C24
PRODUCTION DATA
CMD Address | 79h |
Write Transaction: | Write Word |
Read Transaction: | Read Word |
Format: | Unsigned Binary (2 bytes) |
Phased: | Yes |
NVM Backup: | 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. Always follows the value of the
PGOOD/RESET_B pin is asserted. 0b: The output voltage is within the regulation window. The PGOOD pin is de-asserted. 1b: The output voltage is not within the regulation window. The 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 that can trigger SMBALERT have a corresponding bit in SMBALERT_MASK.
Writing 0080h to STATUS_WORD clears the BUSY bit, if set. Writing 0180h to STATUS_WORD clears both the BUSY bit and UNKNOWN bit, if set.