User manual

DE2 User Manual
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OTG_WR_N PIN_G1 ISP1362 Write
OTG_RST_N PIN_G5 ISP1362 Reset
OTG_INT0 PIN_B3 ISP1362 Interrupt 0
OTG_INT1 PIN_C3 ISP1362 Interrupt 1
OTG_DACK0_N PIN_C2 ISP1362 DMA Acknowledge 0
OTG_DACK1_N PIN_B2 ISP1362 DMA Acknowledge 1
OTG_DREQ0 PIN_F6 ISP1362 DMA Request 0
OTG_DREQ1 PIN_E5 ISP1362 DMA Request 1
OTG_FSPEED PIN_F3 USB Full Speed, 0 = Enable, Z = Disable
OTG_LSPEED PIN_G6 USB Low Speed, 0 = Enable, Z = Disable
Table 4.14. USB (ISP1362) pin assignments.
4.15 Using IrDA
The DE2 board provides a simple wireless communication media using the Agilent HSDL-3201
low power infrared transceiver. The datasheet for this device is provided in the Datasheet\IrDA
folder on the DE2 System CD-ROM. Note that the highest transmission rate supported is 115.2
Kbit/s and both the TX and RX sides have to use the same transmission rate. Figure 4.22 shows the
schematic of the IrDA communication link. Please refer to the following website for detailed
information on how to send and receive data using the IrDA link:
http://techtrain.microchip.com/webseminars/documents/IrDA_BW.pdf.
The pin assignment of the associated interface are listed in Table 4.15.
Figure 4.22. IrDA schematic.
Signal Name FPGA Pin No. Description
IRDA_TXD PIN_AE24 IRDA Transmitter
IRDA_RXD PIN_AE25 IRDA Receiver
Table 4.15. IrDA pin assignments.