Xilinx Spartan-3E User Manual

Spartan-3E Starter Kit Board User Guide www.xilinx.com 59
UG230 (v1.0) March 9, 2006
R
Chapter 7
RS-232 Serial Ports
Overview
As shown in Figure 7-1, the Spartan-3E Starter Kit board has two RS-232 serial ports: a
female DB9 DCE connector and a male DTE connector. The DCE-style port connects
directly to the serial port connector available on most personal computers and
workstations via a standard straight-through serial cable. Null modem, gender changers,
or crossover cables are not required.
Use the DTE-style connector to control other RS-232 peripherals, such as modems or
printers, or perform simple loopback testing with the DCE connector.
Figure 7-1: RS-232 Serial Ports
DCE
DTE
Spartan-3E FPGA
DTE
Male DB9
12345
6789
GND
12345
6789
GND
RS232_DCE_RXD RS232_DCE_TXD RS232_DTE_TXD RS232_DTE_RXD
DCE
Female DB9
RS-232 Voltage Translator (IC2)
J9 J10
(M13)(U8)(M14)(R7)
Pin 1
Pin 6
Pin 9
Pin 5
DB9 Serial Port Connector
(front view)
Standard
9-pin serial cable
Standard
9-pin serial cable
RS CS TR RD TD CD
TALK/DATA
TALK
RS-232 Peripheral
UG230_c7_01_022006

Xilinx Spartan-3E Specifications

General

Brand	Xilinx
Model	Spartan-3E
Category	Motherboard
Language	English