47.7.4 Resistor Control
| Name: | RESCTRL |
| Offset: | 0x10 |
| Reset: | 0x0 |
| Property: | PAC Write-Protection |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| REFBUFLEVEL[1:0] | POTMUX[2:0] | RES1MUX | RES1EN | RES2OUT | |||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Bits 7:6 – REFBUFLEVEL[1:0] OPAMP Reference Output Voltage (REFBUF) Level Selection
REFBUFLEVEL allows to select the OPAMP Reference Output Voltage (REFBUF) Level.
| Value | Reference Level |
|---|---|
| 0x0 | 1.1V |
| 0x1 | 1.25V |
| 0x2 | 1.6V |
| 0x3 | Reserved |
Bits 5:3 – POTMUX[2:0] Potentiometer selection
Resistor selection bits control a numeric potentiometer with eight fixed values.
| Value | R1 | R2 |
|---|---|---|
| 0x0 | 14R | 2R |
| 0x1 | 12R | 4R |
| 0x2 | 8R | 8R |
| 0x3 | 6R | 10R |
| 0x4 | 4R | 12R |
| 0x5 | 3R | 13R |
| 0x6 | 2R | 14R |
| 0x7 | R | 15R |
Bit 2 – RES1MUX Resistor 1 Mux
These bits select the connection of R1 resistor of the potentiometer.
| Value | Name | Description |
|---|---|---|
| 0x0 | DAC | DAC VOUT0 |
| 0x1 | REFBUF | OPAMP Reference Output Voltage (REFBUF) |
Bit 1 – RES1EN Resistor 1 Enable
| Value | Description |
|---|---|
| 0 | R1 disconnected from RES1MUX. |
| 1 | R1 connected to RES1MUX. |
Bit 0 – RES2OUT Resistor ladder To Output
| Value | Description |
|---|---|
| 0 | Swith open. |
| 1 | Switch closed. |