Sensors for diagnostics
| I2C/PMBUS address | Chip | Channel | Measurement | Nominal V / Max I | Description |
|---|---|---|---|---|---|
| 0x48 | LM75 (IC36) | 1 | Temp | - | Temp DDR |
| 0x49 | LM75 (IC36) | 1 | Temp | - | Temp FMC |
| 0x4A | LM75 (IC36) | 1 | Temp | - | Temp Power Management |
| 0x2C | MAX6639 (IC28) | 1 | Temp | - | Temp FPGA |
| 0x2C | MAX6639 (IC28) | 2 | Temp | - | Not used |
| 0x2C | MAX6639 (IC28) | 1 | Fan | - | Not used |
| 0x2C | MAX6639 (IC28) | 2 | Fan | - | Not used |
| 0x14/0x44 | IRPS5401 (IC30) | IN | V/I/P | 12V | IRPS1 Input <Voltage / Current / Power> |
| 0x14/0x44 | IRPS5401 (IC30) | 1 | V/I/P/T | 0.85V, 30A | IRPS1 P0V85 <Voltage / Current / Power / Temp> |
| 0x14/0x44 | IRPS5401 (IC30) | 2 | V/I/P/T | 1.8V, 2A | IRPS1 P1V8_AUX <Voltage / Current / Power / Temp> |
| 0x14/0x44 | IRPS5401 (IC30) | 3 | V/I/P/T | 1.2V, 4A | IRPS1 P1V2 <Voltage / Current / Power / Temp> |
| 0x14/0x44 | IRPS5401 (IC30) | 4 | V/I/P/T | 1.8V, 4A | IRPS1 P1V8 <Voltage / Current / Power / Temp> |
| 0x14/0x44 | IRPS5401 (IC30) | 5 | V/I/P/T | 1.2V, 0.5A | IRPS1 P1V2_PSPLL LDO <Voltage / Current / Power / Temp> |
| 0x15/0x45 | IRPS5401 (IC30) | IN | V/I/P | 12V | IRPS2 Input <Voltage / Current / Power> |
| 0x15/0x45 | IRPS5401 (IC30) | 1 | V/I/P/T | 3.3V, 20A | IRPS2 P3V3 <Voltage / Current / Power / Temp> |
| 0x15/0x45 | IRPS5401 (IC30) | 2 | V/I/P/T | 1.8V, 2A | IRPS2 MGT_1V8 <Voltage / Current / Power / Temp> |
| 0x15/0x45 | IRPS5401 (IC30) | 3 | V/I/P/T | 0.9V, 4A | IRPS2 MGT_0V9 <Voltage / Current / Power / Temp> |
| 0x15/0x45 | IRPS5401 (IC30) | 4 | V/I/P/T | 1.2V, 4A | IRPS2 MGT_1V2 <Voltage / Current / Power / Temp> |
| 0x15/0x45 | IRPS5401 (IC30) | 5 | V/I/P/T | - | (not used, do not report) |
I2C interfaces (System Board v1.0)
| Interface | I2C bus (PCB schematics) | I2C devices |
|---|---|---|
| PS I2C0 | I2C-FMC | System Board FMC |
| PS I2C1 | I2C | PCA9548APW i2cmux (IRPS5401, LM75, SI5341, MAX6639, SFP) |
| PL I2C0 | I2C-WRFLASH | 24AA64T, 24AA025E48 |
| PL I2C1 | MON-bus I2C | Crate PSUs, Fan Tray |
| PL I2C2 | CPCIS_I2C | Peripheral Boards identification |