UART0 (MIO 18-19)

ZCU111 Evaluation Board User Guide (UG1271)

Document ID
UG1271
Release Date
2023-04-28
Revision
1.4 English

[ This Figure , callout 7]

This is the primary Zynq UltraScale+ RFSoC PS-side UART interface and is connected to the FTDI U34 FT4232HL USB-to-Quad-UART bridge port B through TXS0108E level-shifter U21. The FT4232HL U34 port assignments are listed in Table: FT4232HL Port Assignments . The FT4232HL UART interface circuit is shown in This Figure .

Table 3-8: FT4232HL Port Assignments

FT4232HL U34

Zynq UltraScale+ RFSoC U1

Port A JTAG

ZCU111 JTAG chain

Port B UART0

PS_UART0 (MIO 18-19)

Port C UART2

PL_UART2 bank 64

Port D UART3

U42 system controller UART

Figure 3-5: ZCU111 FT4232HL UART Connections

X-Ref Target - Figure 3-5

X20481-ft4232hl-uart.jpg

The FT4232HL U34 UART connections are  listed in Table: FT4232HL UART Connections .

Table 3-9: FT4232HL UART Connections

FT4232HL U34 Pin

Schematic Net Name

Level Shifter

Level-Shifted Net Name

Target UART
Ref Des., Pin

26

LS_UART0_TXD_OUT

U21

UART0_TXD_MIO18_RXD

U1

Y27

27

LS_UART0_RXD_IN

U21

UART0_RXD_MIO19_TXD

U1

W28

38

LS_UART2_TXD_OUT

U21

UART2_TXD_FPGA_RXD

U1

AT15

39

LS_UART2_RXD_IN

U21

UART2_RXD_FPGA_TXD

U1

AU15

40

LS_UART2_RTS_B

U21

UART2_RTS_B

U1

AU14

41

LS_UART2_CTS_B

U21

UART2_CTS_B

U1

AT14

48

UART3_TXD_O_MSP430_UCA0_RXD

NA

NA

U42

26

52

UART3_RXD_I_MSP430_UCA0_TXD

NA

NA

U42

25

For more information on the FT4232HL, see the Future Technology Devices International Ltd website [Ref 27] .