29.16.7 PMC PLL Analog Control Register
This register must be loaded with the recommended values described in the Electrical Characteristics section.
All fields defined here are applied to the PLL defined by the last ID field written in the PMC_PLL_UPDT register.
| Name: | PMC_PLL_ACR |
| Offset: | 0x0018 |
| Reset: | 0x00020033 |
| Property: | Read/Write |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| LOOP_FILTER[5:0] | |||||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | |||
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | |||
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| LOCK_THR[2:0] | |||||||||
| Access | R/W | R/W | R/W | ||||||
| Reset | 0 | 1 | 0 | ||||||
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| UTMIBG | UTMIVR | CONTROL[11:8] | |||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | |||
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | |||
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| CONTROL[7:0] | |||||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | |
Bits 29:24 – LOOP_FILTER[5:0] Loop Filter Selection
Bits 18:16 – LOCK_THR[2:0] PLL Lock Threshold Value Selection
Bit 13 – UTMIBG UPLL Bandgap Control
| Value | Description |
|---|---|
| 0 | The UPLL bandgap is switched off. |
| 1 | The UPLL bandgap is switched on. |
Bit 12 – UTMIVR UPLL Voltage Regulator Control
| Value | Description |
|---|---|
| 0 | The UPLL voltage regulator is switched off. |
| 1 | The UPLL voltage regulator is switched on. |
Bits 11:0 – CONTROL[11:0] PLL CONTROL Value Selection
On PLLA, this field
controls the DCO analog filters:
| Field | Description |
|---|---|
| CONTROL[1:0] | Analog VCO filter selection |
| CONTROL[4:2] | Process configuration |
| CONTROL[6:5] | VCO gain configuration |
| CONTROL[7] | Offset frequency adjustment |
| CONTROL[8] | External pad connection |
| CONTROL[9] | Test mode dedicated |
| CONTROL[10] | DAC mode |
| CONTROL[11] | Enable output phases |
On UPLL, this field
controls the following PLL ports:
| Field | Description |
|---|---|
| CONTROL[1:0] | Not used |
| CONTROL[4:2] | Process configuration |
| CONTROL[6:5] | VCO gain configuration |
| CONTROL[7] | Offset frequency adjustment |
| CONTROL[11:8] | Not used |