
VCU1287 Characterization Board
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UG1121 (v1.0) December 11, 2015
Appendix D:
System Controller
Si5368 CKOUT5 Current Frequency = 2.02 MHz
Option 0: Return to Main Menu
This option returns to the menu level above.
PMBus Menu
The PMBus bus commands are used to read the voltage settings of the VCU1287 power rails
controlled by the Maxim power system. Through the PMBus menu, these power rails can be
read once or scanned continuously until stopped by a key press.
Table D-1
lists the voltage
rails accessible through the system controller's interface to the Maxim PMBus.
PMBus Menu Options
VCU1287 System Controller v1.0
- PMBus Menu-
1. Get PMBUS Voltages
2. Continuous Scan PMBUS Voltages
3. Get VCCINT Voltage
4. Get VCCAUX Voltage
5. Get VCCBRAM Voltage
6. Get VCCOHP Voltage
7. Get VCCOHR Voltage
Table D-1:
Maxim Power Supply Rail
Maxim Power Supply Rail
I2C Address
Nominal Voltage
VCCINT
0x70
0.95V
VCCAUX
0x0B
1.80V
VCCBRAM
0x0F
0.95V
VCCO_HP
0x13
1.80V
VCCO_HR
0x11
1.80V
UTIL_5V0
0x1C
5.00V
UTIL_3V3
0x71
3.30V
UTIL_2V5
0x1A
2.50V
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