I2C0 And I2C1 Bus Connectivity Overview - Xilinx VCK190 Series User Manual

I2C0
U212
L/S
U210
L/S
I2C0
PMC MIO[46:47] I2C0 Bus
[Figure 3, callout 11]
Bus I2C0 connects the XCVC1902 U1 PS bank 501 and the XCZU4EG system controller U125
PS bank 501 to a GPIO 16-bit port expander (TCA6416A U233) and I2C switch (TCA9548A
U33). The port expander enables accepting various fan controller, FMCP connector, and power
system status inputs. Bus I2C0 also provides access to power system PMBus power controllers
and INA226 power monitors, as well as three SI570 components via the U33 TCA9548A switch.
TCA6416A U233 is pin-strapped to respond to I2C address 0x20. The TCA9548A U33 switch is
set to 0x74.
UG1366 (v1.0) January 7, 2021
VCK190 Board User Guide
Figure 13: I2C0 and I2C1 Bus Connectivity Overview
System Controller
PS Bank 501
U125 XCZU4EG
Versal ACAP
PS Bank 501
U1
0x20
P00 MAX6643_OT_B
P01 MAX6643_FANFAIL_B
P04 PMBUS2_INA226_ALERT
P07 MAX6643_FULLSPD
P10 FMCP1_FMC_PRSNT_M2C_B
P11 FMCP2_FMC_PRSNT_M2C_B
GPIO
Expander
P12 FMCP1_FMCP_PRSNT_M2C_B
P13 FMCP2_FMCP_PRSNT_M2C_B
P14 VCCINT_VRHOT_B
P15 8A34001_EXP_RST_B
P16 PMBUS_ALERT
P17 PMBUS1_INA226_ALERT
U233 TCA6416A
0x74
0 0 PMBUS
1 1 PMBUS1_INA226
2 2 PCIE_CLK
3 3 PMBUS2_INA226
I2C
MUX 4 4 NC
5 5 zSFP_SI570
6 6 USER_SI570_1_CLOCK
7 7 NC
U33 TCA9548A
Chapter 3: Board Component Descriptions
I2C1
0x74 0x74
U213
L/S
U211
L/S
0x75 0x75
U214 TCA9548A U214 TCA9548A
I2C1
Send Feedback
0 0 DC_I2C
1 1 FMCP1_IIC
2 2 FMCP2_IIC
3 3 DDR4_DIMM1
I2C
MUX
4 4 LPDDR4_SI570_CLK2
#1
5 5 LPDDR4_SI570_CLK1
6 6 HSDP_SI570
7 7 8A34001
U35 TCA9548A U35 TCA9548A
0 0 SFP0_IIC
1 1 SFP1_IIC
2 2 QSFP1_I2C
I2C
3 3 NC
MUX
#2 4 4 NC
5 5 NC
6 6 NC
7 7 NC
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