| CMD Address | 37h |
| Write Transaction: | Write Word (Single Phase Only) |
| Read Transaction: | Read Word |
| Format: | Four Hexadecimal values |
| Phased: | No, Read only in Multi-phase stack |
| Updates: | On-th-fly |
| NVM Back-up: | EEPROM or Pin Detection |
INTERLEAVE sets the phase delay between the
external SYNC (IN or OUT) and the internal PMW oscillator.
Figure 6-36 (37h) INTERLEAVE Register Map| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| R | R | R | R | RW | RW | RW | RW |
| Not Used | GROUPID |
|
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| RW | RW | RW | RW | RW | RW | RW | RW |
| NUM_GROUP | ORDER |
| LEGEND: R/W = Read/Write; R = Read only |
Table 6-46 Register Field Descriptions| Bit | Field | Access | Reset | Description |
|---|
| 15:12 | Not Used | R | 0h | Not used, set to b'0000. |
| 11:8 | GROUPID | RW | NVM | Group ID Number. Set to 0h to Fh. |
| 7:4 | NUM_GROUP | RW | NVM | Number in Group, sets the number of phases positions and the phase shift for each
value of ORDER. Set to value 1h to 4h. |
| 3:0 | ORDER | RW | NVM | Order within the group. Each value of ORDER adds a phase shift equal to 360° /
NUM_GROUP. Set to value 0h to NUM_GROUP -
1. |
Table 6-47 Supported INTERLEAVE Settings| Number in Group | Order | Phase Position (°) |
|---|
| 1 | 0 | 0 |
| 2 | 0 | 0 |
| 2 | 1 | 180 |
| 3 | 0 | 0 |
| 3 | 1 | 120 |
| 3 | 2 | 240 |
| 4 | 0 | 0 |
| 4 | 1 | 90 |
| 4 | 2 | 180 |
| 4 | 3 | 270 |
The (37h) INTERLEAVE
command is used to arrange multiple devices
sharing a common SYNC signal in time. The phase
delay added to each device is equal to 360° /
Number in Group × Order. To prevent misaligning
the phases of a multi-phase stack, (37h) INTERLEAVE
is read only when the TPS546B24S is configured as part of a
multi-phase stack. The Read/Write status of the
(37h) INTERLEAVE
command is set based on the state of the (ECh) MFR_SPECIFIC_28 (STACK_CONFIG)
command at power-on and is not updated if (ECh) MFR_SPECIFIC_28 (STACK_CONFIG)
is later changed. If (37h) INTERLEAVE
will be used to program the phase position of a
stand-alone device, the TPS546B24S must be configured as a
stand-alone device at power-on to ensure write
capability of the (37h) INTERLEAVE
command.