Specifications

Altera Corporation 33
EPXA1 Development Board Hardware Reference Manual
Signals
Tables 23 through 27 document the device signals for the following
peripherals:
■ UART
■ Expansion headers
■ Configuration/debugging interfaces
UART
Figure 12 shows the DB9 male connector used on the development board.
Figure 12. UART DB9 Male Connector
Table 23 lists the UART DB9 signals.
Note:
(1) The EPXA1 development board has two DB9 male connectors.
Table 33 on page 44 lists pin-out information for the UARTs on the
development board.
1
23
4
5
6
7
8
9
Table 23. DTE UART DB9 Male Connector Signals (1)
Pin Signal Description
1 DCD Data carrier detect
2 RXD Receive data
3 TXD Transmit data
4 DTR Data terminal ready
5 GND Signal ground
6 DSR Data set ready
7 RTS Request to send
8 CTS Clear to send
9 RI Ring indicator