UART I/O Interface Signals - UART I/O Interface Signals

UART I/O Interface Signals - UART I/O Interface Signals - AM011

Versal Adaptive SoC Technical Reference Manual (AM011)

Document ID

AM011

Release Date

2026-03-06

Revision

1.9 English

The UART controller I/O signals are routed to both the PMC and LPD MIOs, and the EMIO. Each set of I/O signals can be located on the pins as shown in MIO-at-a-Glance Tables. The TXD, RXD, CTS_b, and RTS_b signals are available on the MIO or EMIO. The other UART flow control signals are available on EMIO.

Table 1. UART Controller I/O Signals
MIO			EMIO
Signal Name	I/O	MIO-at-a-Glance Table	Signal Name	I/O
UART0_RXD UART1_RXD	I	RXD	RXD	I
UART0_TXD UART1_TXD	O	TXD	TXD	O
UART0_CTS_b UART1_CTS_b	I	CTS	CTS_b	I
UART0_RTS_b UART1_RTS_b	O	RTS	RTS_b	O
Not available on MIO			DCD_b	I
			DSR_b	I
			RI_b	I
			DTR_b	O
			SIRIN	I
			SIROUT_b	O
The RXD, TXD, CTS_b, and RTS_b signals are routed to the MIO as a group. Unused signals (e.g., CTS_b and RTS_b) do not need to be routed through the MIO.