SLVSH95 July 2024 TPS546C25
ADVANCE INFORMATION
| CMD Address | D6h |
| Read Transaction: | Read Byte |
| Format: | Unsigned Binary (1 byte) |
| NVM Back-up: | EEPROM |
| Updates: | On-the-fly |
STACK_CONFIG describes the number of devices in the system, where the device is in the stack, and its role in the system. While the bits [7:4] are read-only, the bits [3:2] and [1:0] are populated from pinstrap results.
Return to Supported PMBus Commands.
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| R | R | R | R | RW | RW | RW | RW |
| PSTR_STACK | STACK_NUMBER | STACK_POSITION | |||||
| LEGEND: R/W = Read/Write; R = Read only |
| Bit | Field | Access | Reset | Description |
|---|---|---|---|---|
| 7:4 | PSTR_STACK | R | 0000b | Stack number and stack position from pinstrap. Gives pinstrap value is STACK_NUMBER or STACK_POSITION are overwritten. The format is {STACK_NUMBER[1:0],STACK_POSITION[1:0]}. |
| 3:2 | STACK_POSITION | R/W | NVM | Device position in system stack. Indicates whether the part is a primary or secondary device. These bits are set by pinstrap. Reads will return pinstrapped values. 00b: Stack Controller / Primary Device 01b: First Secondary Device 10b: Second Secondary Device 11b: Third Secondary Device |
| 1:0 | STACK_NUMBER | R/W | NVM | Number of devices in system stack. Indicates the total number of devices in the stack including the controller/primary device. These bits are set by pinstrap. Reads will return pinstrapped values. 00b: Single Phase 01b: 2-Phase 10b: 3-Phase 11b: 4-Phase |