UART I/O Signals

Versal Adaptive SoC Technical Reference Manual (AM011)

Document ID

AM011

Release Date

2023-10-05

Revision

1.6 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 one of six sections of pins as shown in PMC MIO Pin Table. The CTS_b and RTS_b signals are available on the MIO or EMIO. The UART flow control signals are available on EMIO.

Table 1. UART Controller I/O Signals
MIO					EMIO
Signal Name	I/O	PMC MIO Pin	LPD MIO Pin	MIO-at-a-Glance Table	Signal Name	I/O
UART0_RXD UART1_RXD	I	PMC MIO Pin Table ¹		0		I
UART0_TXD UART1_TXD	O			1		O
UART0_CTS_b UART1_CTS_b	I			2	CTS_b	I
UART0_RTS_b UART1_RTS_b	O			3	RTS_b	O
Not available on MIO					DCD_b	O
					DSR_b	I
					RI_b	I
					DTR_b	I
					SIRIN	O
					SIROUT_b	I
The RXD, TXD, CTS_b, and RTS_b signals are routed to the MIO as a group. The groups are shown in the PMC MIO Pin Table. Unused signals (e.g., CTS_b and RTS_b) do not need to be routed through the MIO.