AMD XILINX VPK180 - Page 41

Figure 14: I2C0 Bus Topology
0
1
2
3
4
5
6
7
U33 TCA9548A
PMBUS
PMBUS1_INA226
NC
PMBUS2_INA226
NC
NC
NC
NC
L/S
0
1
2
3
4
5
6
7
L/S
I2C0
System
Controller
Versal ACAP MIO
0
1
2
3
4
5
6
7
QSFPDD1_MODSELL
QSFPDD2_MODSELL
QSFPDD3_MODSELL
QSFPDD4_MODSELL
PMBUS2_INA226_ALERT
QSFPDD5_MODSELL
QSFPDD6_MODSELL
NC
FMCP1_FMC_PRSNT_M2C_B
NC
FMCP1_FMC PRSNT_M2C_B
UTIL_3V3_VRHOT_B
VCCINT_VRHOT_B
8A34001_EXP_RST_B
PMBUS_ALERT
PMBUS1_INA226_ALERT
0
1
2
3
4
5
6
7
10
11
12
13
14
15
16
17
0x74
I2C MUX
0x20
GPIO Expander
U233 TCA9548A
X26553-071922
The devices on each port of the I2C0 U233 TCA6416A port expander and on each bus of the
I2C0 U33 TCA9548A switch are listed in the following tables.
Table 12: I2C0 Port Expander TCA6416A U233 Address 0x20 Connections
I2C Devices Port Direction Device
QSFPDD1_MODSELL P00 Out J1 QSFP-DD
QSFPDD2_MODSELL P01 Out J2 QSFP-DD
QSFPDD3_MODSELL P02 Out J355 QSDP-DD
QSFPDD4_MODSELL P03 Out J354 QSDP-DD
PMBUS2_INA226_ALERT P04 In U125 (ZU4), U166, U168, U172, U174, U176, U177,
U184, U186, U188, U234, U260, U264, U265
QSFPDD5_MODSELL P05 Out J359 QSDP-DD
QSFPDD6_MODSELL P06 Out J358 QSFP-DD
NC P07-P09 N/A N/A
Chapter 3: Board Component Descriptions
UG1582 (v1.0) February 21, 2023 www.xilinx.com
VPK180 Board User Guide 41
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