Figure 7-1, Chapter 7: rs-232 serial ports – Xilinx MIcroblaze Development Spartan-3E 1600E User Manual
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MicroBlaze Development Kit Spartan-3E 1600 Edition User Guide
UG257 (v1.1) December 5, 2007
Chapter 7:
RS-232 Serial Ports
R
Figure 7-1:
RS-232 Serial Ports
DCE
DTE
Spartan-3E FPGA
DTE
Male DB9
1
2
3
4
5
6
7
8
9
GND
1
2
3
4
5
6
7
8
9
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)
RS CS TR RD TD CD
TALK/DATA
TALK
RS-232 Peripheral
Null Modem
Serial cable
To DTE
To DTE
Std 9-Pin
Serial cable
Std 9-Pin
Serial cable
To DCE
OR
UG257_07_01_060506