P0304 Terasic Technologies Inc, P0304 Datasheet - Page 52

• Manufacturer Part Number: P0304
• Description: DE2-70 CALL FOR ACADEMIC PRICING
• Manufacturer: Terasic Technologies Inc
• Type: FPGAr

Specifications of P0304

• Contents: DE2-70 Board, Power Supply, Cables, Plastic cover and software
• For Use With/related Products: Cyclone II 2C70
• For Use With: P0033 - BOARD ADAPTER HSMC TO GPIOP0006 - BOARD ADAPTER THDB-SUMP0001 - MODULE DIGITAL CAMERA 5MP (D5M)P0307 - KIT DEV 4.3" LCD TOUCH PANEL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: DE2-70

5.9 RS-232 Serial Port
The DE2-70 board uses the ADM3202 transceiver chip and a 9-pin D-SUB connector for RS-232
communications. For detailed information on how to use the transceiver refer to the datasheet,
which is available on the manufacturer’s web site, or in the Datasheet/RS232 folder on the DE2-70
System CD-ROM. Figure 5.15 shows the related schematics, and Table 5.13 lists the Cyclone II
FPGA pin assignments.
5.10 PS/2 Serial Port
The DE2-70 board includes a standard PS/2 interface and a connector for a PS/2 keyboard or mouse.
In addition, users can use the PS/2 keyboard and mouse on the DE2-70 board simultaneously by an
plug an extension PS/2 Y-Cable. Figure 5.16 shows the schematic of the PS/2 circuit. Instructions
for using a PS/2 mouse or keyboard can be found by performing an appropriate search on various
educational web sites. The pin assignments for the associated interface are shown in Table 5.14.
Signal Name
UART_RXD
UART_TXD
UART_CTS
UART_RTS
Figure 5.15. MAX232 (RS-232) chip schematic.
FPGA Pin No.
Table 5.13. RS-232 pin assignments.
PIN_D21
PIN_G22
PIN_E21
PIN_F23
49
UART Request to Send
UART Clear to Send
UART Transmitter
UART Receiver
Description
DE2-70 User Manual