ZHCSRU8 February 2024
PRODUCTION DATA
CMD Address | D0h |
Write Transaction: | Write Block |
Read Transaction: | Read Block |
Format: | Unsigned Binary (6 bytes) |
Phased: | No |
NVM Back-up: | EEPROM |
Updates: | On-The-Fly |
Configure the priority and averaging for each channel of the internal telemetry system.
The internal telemetry system shares a single ADC across each measurement. The priority setting allows the user to adjust the relative rate of measurement of each telemetry value. The ADC will first measure each value with a priority A value. With each pass through all priority A measurements, one priority B measurement will be taken. With each pass through all priority B measurements, one priority C measurement will be taken.
Example: If output voltage has priority A and output current has priority B, and temperature has priority C, the telemetry sequence will be VOUT IOUT VOUT TEMPERATURE VOUT IOUT VOUT TEMPERATURE.
47 | 46 | 45 | 44 | 43 | 42 | 41 | 40 |
RW | RW | RW | RW | RW | RW | RW | RW |
Reserved priority | Reserved | Reserved averaging | |||||
39 | 38 | 37 | 36 | 35 | 34 | 33 | 32 |
RW | RW | RW | RW | RW | RW | RW | RW |
Reserved priority | Reserved | Reserved averaging | |||||
31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 |
R | RW | RW | RW | RW | RW | RW | RW |
RD_VI_PRI | Reserved | RD_VI_AVG | |||||
23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
RW | RW | RW | RW | RW | RW | RW | RW |
RD_TMP_PRI | Reserved | RD_TMP_AVG | |||||
15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
RW | RW | RW | RW | RW | RW | RW | RW |
RD_IO_PRI | Reserved | RD_IO_AVG | |||||
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
RW | RW | RW | RW | RW | RW | RW | RW |
RD_VO_PRI | Reserved | RD_VO_AVG |
LEGEND: R/W = Read/Write; R = Read only |
Bit | Field | Access | Reset | Description |
---|---|---|---|---|
47:40 | Not used | R | 00h | Reserved. Set values to 00h. |
39:32 | Not used | RW | NVM | Reserved. Set values to 03h. |
31:30 | RD_VI_PRI | RW | NVM | 00b: Assign priority A to input voltage telemetry. 01b: Assign priority B to input voltage telemetry. 10b: Assign priority C to input voltage telemetry. 11b: Disable input voltage telemetry. |
31:24 | RD_VI_AVG | RW | NVM | 0d - 5d: READ_VIN Rolling average of 2N samples 6d-7d: Invalid |
23:22 | RD_TMP_PRI | RW | NVM | 00b: Assign priority A to temperature telemetry. 01b: Assign priority B to temperature telemetry. 10b: Assign priority C to temperature telemetry. 11b: Invalid |
21:19 | Reserved | RW | NVM | Reserved. Set to 000b. |
18:16 | RD_TMP_AVG | RW | NVM | 0d - 5d: READ_TEMPERATURE_1 Rolling average of 2N samples 6d-7d: Invalid |
15:14 | RD_IO_PRI | RW | NVM | 00b: Assign priority A to output current telemetry. 01b: Assign priority B to output current telemetry. 10b: Assign priority C to output current telemetry. 11b: Disable output current telemetry. |
13:11 | Reserved | RW | NVM | Reserved. Set to 000b. |
10:8 | RD_IO_AVG | RW | NVM | 0d - 5d: READ_IOUT Rolling average of 2N samples 6d-7d: Invalid |
7:6 | RD_VO_PRI | RW | NVM | 00b: Assign priority A to output voltage telemetry. 01b: Assign priority B to output voltage telemetry. 10b: Assign priority C to output voltage telemetry. 11b: Disable output voltage telemetry. |
5:3 | Reserved | RW | NVM | Reserved. Set to 000b. |
2:0 | RD_VO_AVG | RW | NVM | 0d - 5d: READ_VOUT Rolling average of 2N samples 6d-7d: Invalid |
Disabling any telemetry value will force the associated READ PMBus command to report 0000h.
Because temperature telemetry is used for Overtemperature Protection, temperature telemetry cannot be disabled.