3.2 Metrology Status Registers
The Metrology module generates primary 32-bit output measurement quantities for each measurement interval, per-phase quantities with each phase designated by the subscript “_x”. The starting address is 0x20088150.
| Index | Address | Variable | Access Mode | Name | Format | No. Bytes | Min Value | Max Value | Default | Units |
|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0x20088150 | VERSION | R | Metrology Firmware version | — | 4 | — | — | — | integer |
| 1 | 0x20088154 | STATUS | R | Metrology Status register | — | 4 | — | — | — | integer |
| 2 | 0x20088158 | STATE_FLAG | R | Metrology Version and State Flags register | — | 4 | — | — | — | integer |
| 3 | 0x2008815C | CAPTURE_STATUS | R | Waveform capture status | — | 4 | — | — | — | integer |
| 4 | 0x20088160 | INTERVAL_NUM | R | Interval number | — | 4 | 0 | — | — | integer |
| 5 | 0x20088164 | N | R | Number samples in measurement interval | uQ16.0 | 4 | 1 | 3960 | 0 | integer |
| 6 | 0x20088168 | PH_OFFSET | R | Phase calibration offset | sQ0.31 | 4 | -1.000 | +0.9999 | — | BAMS |
| 7 | 0x2008816C | FREQ | R | Frequency of fundamental harmonic | uQ20.12 | 4 | 42.5 | 69 | — | Hz |
| 8 | 0x20088170 | FREQ_VA | R | Frequency of fundamental harmonic, VA | uQ20.12 | 4 | 42.5 | 69 | — | Hz |
| 9 | 0x20088174 | FREQ_VB | R | Frequency of fundamental harmonic, VB | uQ20.12 | 4 | 42.5 | 69 | — | Hz |
| 10 | 0x20088178 | FREQ_VC | R | Frequency of fundamental harmonic, VC | uQ20.12 | 4 | 42.5 | 69 | — | Hz |
| 11 | 0x2008817C | RESERVED | — | — | — | — | — | — | — | — |
| 12 | 0x20088180 | TEMPERATURE | R | Temperature, average | sQ23.8 | 4 | — | — | — | ºC |
| 13 | 0x20088184 | V_A_MAX | R | Max phase-A voltage during measurement interval | sQ2.29 | 4 | -4.0 | 3.9999 | — | Vpk scaled |
| 14 | 0x20088188 | V_B_MAX | R | Max phase-B voltage during measurement interval | sQ2.29 | 4 | -4.0 | 3.9999 | — | Vpk scaled |
| 15 | 0x2008818C | V_C_MAX | R | Max phase-C voltage during measurement interval | sQ2.29 | 4 | -4.0 | 3.9999 | — | Vpk scaled |
| 16 | 0x20088190 | RESERVED | - | — | — | 4 | — | — | — | — |
| 17 | 0x20088194 | I_A_MAX | R | Max phase-A current during measurement interval | sQ2.29 | 4 | -4.0 | 3.9999 | — | Apk scaled |
| 18 | 0x20088198 | I_B_MAX | R | Max phase-B current during measurement interval | sQ2.29 | 4 | -4.0 | 3.9999 | — | Apk scaled |
| 19 | 0x2008819C | I_C_MAX | R | Max phase-C current during measurement interval | sQ2.29 | 4 | -4.0 | 3.9999 | — | Apk scaled |
| 20 | 0x200881A0 | I_Nm_MAX | R | Max phase-N measured current during measurement interval | sQ2.29 | 4 | — | — | — | Apk scaled |
| 21 | 0x200881A4 | I_Ni_MAX | R | Max phase-N imputed current during measurement interval | sQ16.15 | 4 | — | — | — | Amppk |
| 22 | 0x200881A8 | FEATURES | R | Compiled feature indicator bits | uQ32.0 | 4 | — | — | — | — |
| 23 | 0x200881AC | N_CYCLE | R | Number samples in the last cycle | uQ20.12 | 4 | 1 | 3960 | 0 | real number |
| 24 | 0x200881B0 | RESERVED | — | — | — | 4 | — | — | — | — |
| 25 | 0x200881B4 | RESERVED | — | — | — | 4 | — | — | — | — |
| 26 | 0x200881B8 | PULSE0_COUNTER | R | Number of pulses issued (Pulse 0) | uQ32.0 | 4 | — | — | 0 | integer |
| 27 | 0x200881BC | PULSE1_COUNTER | R | Number of pulses issued (Pulse 1) | uQ32.0 | 4 | — | — | 0 | integer |
| 28 | 0x200881C0 | PULSE2_COUNTER | R | Number of pulses issued (Pulse 2) | uQ32.0 | 4 | — | — | 0 | integer |
| 29 | 0x200881C4 | RESERVED | — | — | — | 4 | — | — | — | — |
| 30 | 0x200881C8 | ZC_N_VA | R | Zero-crossing sample number of phase-A voltage | uQ20.12 | 4 | — | — | — | real number |
| 31 | 0x200881CC | ZC_N_VB | R | Zero-crossing sample number of phase-B voltage | uQ20.12 | 4 | — | — | — | real number |
| 32 | 0x200881D0 | ZC_N_VC | R | Zero-crossing sample number of phase-C voltage | uQ20.12 | 4 | — | — | — | real number |
| 33 | 0x200881D4 | RESERVED | — | — | — | 4 | — | — | — | — |
| 34 | 0x200881D8 | ATSENSE_CAL_41_44 | R | ATSENSE manufacturing calibration data, registers 41-44 | uQ32.0 | 4 | — | — | — | integer |
| 35 | 0x200881DC | ATSENSE_CAL_45_48 | R | ATSENSE manufacturing calibration data, registers 45-48 | uQ32.0 | 4 | — | — | — | integer |