ZHCSG68F MARCH 2017 – JANUARY 2019 TPSM846C23
PRODUCTION DATA.
The VOUT_COMMAND command sets the output voltage in volts. The contents of this register can be stored to nonvolatile memory using the STORE_DEFAULT_ALL command. The exponent is set be VOUT_MODE at –9 (equivalent of 1.953 mV/count). The programmed internal reference voltage is computed as:
For loop slave device, this command cannot be accessed. Any writes to this command will be ignored. An attempt to read or write this command will result in a NACK’d command, the reporting of an IVC fault, and triggering of SMB_ALERT.
The range of valid VOUT_COMMAND values is dependent upon the configured VOUT_SCALE_LOOP (29h) as follows:
| VOUT_SCALE_LOOP | Vout Range (volts) | VOUT_COMMAND data valid range |
|---|---|---|
| 1 | 0.35 to 1.65 | 179 to 845 |
| 0.5 | 0.7 to 2.0 (1) | 358 to 1024 |
Any VOUT_COMMAND > 2816 (5.5-V maximum VOUT equivalent) is treated as invalid data:
If the value programmed to VOUT_COMMAND exceeds the value stored in either VOUT_MIN or VOUT_MAX. In this case, VOUT_COMMAND will be set to the appropriate VOUT_MIN or VOUT_MAX value (which ever was violated). See the command descriptions for (28h) VOUT_MIN or (24h) VOUT_MAX for the specific status bits set in either case.
| COMMAND | VOUT_COMMAND | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Format | Linear, unsigned binary | |||||||||||||||
| Bit Position | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| Access | r | r | r | r | r/wE | r/wE | r/wE | r/wE | r/wE | r/wE | r/wE | r/wE | r/wE | r/wE | r/wE | r/wE |
| Function | Mantissa | |||||||||||||||
| Default Value | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |