ZCU102 Evaluation Board User Guide www.xilinx.com 60
UG1182 (v1.2) March 20, 2017
Chapter 3: Board Component Descriptions
UART0 (MIO 18-19)
This is the primary Zynq UltraScale+ MPSoC PS-side UART interface and is connected to the
U40 CP2108 USB-to-Quad-UART bridge with port assignments as listed in Table 3-25.
PS-side UART0 is accessed through the U40 CP2108 USB-to-Quad-UART bridge port 0.
IMPORTANT: Use SiLabs CP210X VCP driver version 6.7.0 or later for proper USB enumeration as
identified in Table 3-25.
UART1 (MIO 20-21)
PS-side UART1 is accessed through the U40 CP2108 USB-to-Quad-UART Bridge port 1. The
CP2108 Channel 1 PS-side UART interface circuit is shown in Figure 3-19. The connections
from XCZU9EG U1 to CP2108 U40 via L/S U54 are listed in Table 3-26.
Table 3-24: I2C1 TCA9548A U135 Multiplexer Connections
U135 I2C Mux
(Addr 0x75) Port
I2C BUS 1 Device(s)
0
FMC HPC_0
1
FMC HPC_1
2
SYSMON
3
DDR4 SODIMM
4
SFP_3
5
SFP_2
6
SFP_1
7
SFP_0
Table 3-25: CP2108 UART Assignments
CP2108 U40 Zynq UltraScale+ MPSoC
UART0
PS_UART0 (MIO 18-19)
UART1
PS_UART1 (MIO 20-21)
UART2
PL-UART (HD Bank 49)
UART3
U41 System Controller UART