ZHCSIO9A August 2018 – June 2021 TPSM831D31
PRODUCTION DATA
The MFR_SPECIFIC_14 command is used to configure dynamic phase shedding, and compensation ramp amplitude, and dynamic ramp amplitude during USR, and different power states. The MFR_SPECIFIC_14 command must be accessed through Write Word/Read Word transactions.
MFR_SPECIFIC_14 is a paged register. In order to access MFR_SPECIFIC_14 command for channel A, PAGE must be set to 00h. In order to access the MFR_SPECIFIC_14 register for channel B, PAGE must be set to 01h.
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| RW | RW | RW | RW | RW | RW | RW | RW |
| n/a | n/a | n/a | n/a | n/a | n/a | DPS_3TO2_FINE_DROP | |
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| RW | RW | RW | RW | RW | RW | RW | RW |
| DPS_EN | DYN_RAMP_USR | DYN_RAMP_2PH | DYN_RAMP_1PH | RAMP | |||
| LEGEND: R/W = Read/Write; R = Read only |
| Bit | Field | Type | Reset | Description |
|---|---|---|---|---|
| 15:10 | n/a | RW | NVM | n/a |
| 9:8 | DPS_3TO2_FINE_DROP | RW | NVM | Dynamic phase drop threshold, fine adjustment, 3 phases to 2 phases. Set as an offset from peak efficiency point per phase in Amperes. Phases drop when average phase current reaches the stated threshold. IEFF(PEAK) refers to the value selected by DPS_COURSE_TH in MFR_SPECIFIC_15. 00b: Threshold = 2 × IEFF(PEAK) – 2 A 01b: Threshold = 2 × IEFF(PEAK) 10b: Threshold = 2 × IEFF(PEAK) + 2 A 11b: Threshold = 2 × IEFF(PEAK) + 4 A |
| 7 | DPS_EN | RW | NVM | Enable or Disable Dynamic Phase Shedding 0b: Disable dynamic phase shedding 1b: Enable dynamic phase shedding |
| 6:5 | DYN_RAMP_USR | RW | NVM | Dynamic ramp amplitude setting during USR operation. Only applies to USR Level 1. 00b: Equal to the settings in the RAMP bits 01b: 40 mV 10b: 80 mV 11b: 120 mV |
| 4 | DYN_RAMP_2PH | RW | NVM | Dynamic ramp amplitude setting during 2 phase operation. 0b: Equal to the settings in the RAMP bits 1b: 120 mV |
| 3 | DYN_RAMP_1PH | RW | NVM | Dynamic ramp amplitude setting during 1 phase operation. 0b: Equal to the settings in the RAMP bits 1b: 80 mV |
| 2:0 | RAMP | RW | NVM | Ramp amplitude settings. See Table 7-57. |
| RAMP (binary) | Ramp Amplitude Setting (mV) |
|---|---|
| 000b | 40 |
| 001b | 80 |
| 010b | 120 |
| 011b | 160 |
| 100b | 200 |
| 101b | 240 |
| 110b | 280 |
| 111b | 320 |