Status Elements; Board Specific Leds - Altera Cyclone III Reference Manual

Configuration, Status, and Setup Elements
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Table 2–8. Board-Specific LEDs (Part 1 of 2)
Board
LED Name
Reference
D5 Power
D25 CONF DONE
D20 Loading
D21 Error
D24 Factory
D22 User
D7 ENET TX
D8 ENET RX
2–20
Cyclone III Development Board
cycloneIII_3c120_dev_pfl. The PFL design is programmed onto
the FPGA whenever the flash is to be written using the Quartus II
software.
For more information on:
■
The PFL megafunction, refer to Application Note 386: Using the Parallel
Flash Loader with the Quartus II software.
■
Basic flash programming instructions for the development board,
refer to the Cyclone III Development User Guide, Appendix A,
Programming the Flash Device.

Status Elements

The development board includes general user, board specific, and HSMC
user LEDs. This section discusses board-specific LEDs as well as the
power display device.
For information on general and HSMC user-defined LEDS, refer to
"User-Defined LEDs" on page

Board Specific LEDs

There are 14 board-specific LEDs, which are factory designated.
lists the LED board references, names, and descriptions.
Illuminates when board power switch SW2 is on.
(Requires 14 V to 20 V input to DC input jack J2)
Illuminates when FPGA is successfully configured. Driven by Cyclone III
FPGA.
Illuminates when MAX II CPLD is actively configuring the FPGA. Driven by the
MAX II CPLD.
Illuminates when MAX II CPLD fails to successfully configure the FPGA.
Driven by the MAX II CPLD.
Illuminates when FPGA is configured with the default factory FPGA design.
Driven by the MAX II CPLD.
Illuminates when FPGA is configured with a design other than the default
factory FPGA design. Driven by the MAX II CPLD.
Illuminates when transmit data is active from the Ethernet PHY. Driven by the
Marvell 88E1111 PHY.
Illuminates when receive data is active from the Ethernet PHY. Driven by the
Marvell 88E1111 PHY.
Reference Manual
2–33.
Description
Table 2–8
Altera Corporation
March 2008