Altera Stratix IV E FPGA Development Board - Manual (Page 24)

2–16 Chapter 2: Board Components
Configuration, Status, and Setup Elements
Stratix IV E FPGA Development Board Reference Manual May 2011 Altera Corporation
Table 2–8 lists the LED board references, names, and functional descriptions.
Table 2–8. Board-Specific LEDs (Part 1 of 2)
Board
Reference
Schematic Signal Name Description
I/O
Standard
Stratix IV
E Device
Pin
Number
Other
Connections
D11 ENET_LED_TX
Green LED. Illuminates to indicate Ethernet
PHY transmit activity. Driven by the Marvell
88E1111 PHY.
2.5-V
— —
D12 ENET_LED_RX
Green LED. Illuminates to indicate Ethernet
PHY receive activity. Driven by the Marvell
88E1111 PHY.
— —
D7 ENET_LED_LINK10
Green LED. Illuminates to indicate Ethernet
linked at 10 Mbps connection speed.
Driven by the Marvell 88E1111 PHY.
— —
D8 ENET_LED_LINK100
Green LED. Illuminates to indicate Ethernet
linked at 100 Mbps connection speed.
Driven by the Marvell 88E1111 PHY.
— —
D9 ENET_LED_LINK1000
Green LED. Illuminates to indicate Ethernet
linked at 1000 Mbps connection speed.
Driven by the Marvell 88E1111 PHY.
N32 —
D10 ENET_LED_DUPLEX
Green LED. Illuminates to indicate Ethernet
PHY is operating in Duplex mode. Driven
by the Marvell 88E1111 PHY.
— —
D15
MAX_EMB (labeled USER_1
on the board)
Green LED. Illuminates to indicate which
configuration page is loaded.
— U10.E15
D17 MAX_LOAD
Green LED. Illuminates when the MAX II
CPLD EPM2210 System Controller is
actively configuring the FPGA. Driven by
the MAX II CPLD EPM2210 System
Controller.
— U10.H14
D18 MAX_FACTORY
Green LED. Illuminates when FPGA is
configured with the default factory design.
— U10.G16
D19
MAX_USER (labeled
USER_2 on the board)
Green LED. Illuminates to indicate which
configuration page is loaded.
— U10.G12
D20 MAX_ERROR
Red LED. Illuminates when the MAX II
CPLD EPM2210 System Controller fails to
configure the FPGA. Driven by the MAX II
CPLD EPM2210 System Controller.
— U10.H15
D22 FPGA_CONF_DONE
Green LED. Illuminates when the FPGA is
successfully configured. Driven by the
MAX II CPLD EPM2210 System Controller.
AH29 U10.E3
D21 12V
Blue LED. Illuminates when 12-V power rail
is active.
— — —