Xilinx VCU1525 User Manual

VCU1525 Acceleration Platform User Guide 35
UG1268 (v1.0) November 13, 2017 www.xilinx.com
Chapter 3: Board Component Descriptions
Table 3-5 lists the I2C address of the PCA9546 U28 bus switch target devices.
MSP432 user applications that communicate with devices on one of the downstream I2C
buses must first set up a path to the desired target bus through the U56 bus switch at I2C
address 0x75 (0b1110101).
VCU1525 U56 PCA9546 bus switch hosts three NXP SE98ATP thermal sensors plus a TI
PCA9536 4-bit port expander and an 8-Kbit M24C08 EEPROM on the IIC_SDA/SCL_EEPROM
channel 1 I2C bus. Also, channel 2 supports four DDR4 DIMM sockets on the
DDR4_SDA/SCL bus.
Table 3-5: I2C_FPGA_SDA/SCL I2C Bus Addresses (FPGA U13 only)
I2C Bus I2C Switch Position
I2C Address
Device
Binary Format Hex Format
PCA9546 4-channel bus switch Not applicable 0b1110100 0x74 U28 PCA9546
QSFP0_I2C_SDA/SCL 0 0b1010000 0x50 J7 QSFP0
QSFP1_I2C_SDA/SCL 1 0b1010000 0x50 J9 QSFP1
USER_SI570_CLOCK_SDA/SCL 2 0b1011101 0x5D U14 SI570
USER_SI570_CLOCK_SDA/SCL 2 0b1010100 0x54 U62 M24C08
SYSMON_SDA/SCL
(1)
3 0b0110010 0x32 U13 BANK 65
Notes:
1. SYSMON_SDA/SCL I2C bus is level-shifted to 1.2V by Q31/Q30.
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Xilinx VCU1525 Specifications

General

Brand	Xilinx
Model	VCU1525
Category	Microcontrollers
Language	English