Altera Stratix II GX PCI Express Development Board - Manual (Page 34)

2–24 Reference Manual Altera Corporation
Stratix II GX PCI Express Development Board August 2006
General User Interfaces
Table 2–16 shows the configuration DIP switch (S6) signal names and
descriptions.
Board-Specific LEDs
This section describes the two types of board-specific LEDs:
■ FPGA transceiver channel activity LEDs
■ Power, configuration, and traffic activity LEDs
FPGA Transceiver Channel Activity LEDs
In addition to the user-defined LEDs, the board provides a set of 12
yellow LEDs (2 per interface). These board-specified LEDs are used to
display FPGA transceiver channel activity (or traffic) on a XCVR interface
basis for both TX and RX signals.
Table 2–17 shows the channels needing TX and RX LEDs.
Table 2–16. Configuration DIP Switch (S6) Signal Names and Descriptions
Schematic Signal Name Description
CONFIG_MODE0 Configuration mode - bit 0
CONFIG_MODE1 Configuration mode - bit 1
DIPSW_PGM0 Configuration file page select - bit 0
DIPSW_PGM1 Configuration file page select - bit 1
DIPSW_PGM2 Configuration file page select - bit 2
VCCHTX_ADJ Transceiver power select (on = 1.5 V, off = 1.2 V)
RUnLU Remote/local configuration mode
HSMCA_JTAG HSMC-A JTAG bypass (close to bypass HSMC-A)
HSMCB_JTAG HSMC-B JTAG bypass (close to bypass HSMC-B)
CLK_SEL Local oscillator / SMA input select (on = local
oscillator)
Table 2–17. FPGA Transceiver Interface LEDs (Part 1 of 2)
Number Transceiver Interface Indicator LED Color
1 PCIe edge connector (L0x1, L0x4, L0x8) Yellow
2 SFP A interface (TX & RX) Yellow
3 SFP B interface (TX & RX) Yellow
4 Gigabit Ethernet (TX & RX) Yellow