VCU1287 Characterization Board
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UG1121 (v1.0) December 11, 2015
Chapter 3:
Board Component Descriptions
System Monitor
The SYSMON monitors the physical environment using on-chip temperature and supply
sensors, up to 17 external analog inputs, and an integrated analog-to-digital converter
(ADC). The SYSMON is powered using the on-chip reference (VREF) shown in
Figure 3-13
.
More information about the system monitor is available in the
UltraScale Architecture
System Monitor User Guide
(UG580)
[Ref 2]
.
I2C Bus Management
The I2C bus is routed through U22, an 8-channel I2C-bus multiplexer (NXP Semiconductor
TCA9548). The I2C IDcode for the PCA9548 device is 0x75. The multiplexer provides
I2C/PMBus communication between the bus master (system controller or FPGA) and six
sub-systems:
• Onboard regulators and power monitoring
• SuperClock-2 module
• System controller EEPROM
• FMC1 connector
• FMC2 connector
• FMC3 connector
X-Ref Target - Figure 3-13
Figure 3-13:
SYSMON On-Chip Reference
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