Altera Arria V GX FPGA Development Board - Manual (Page 38)

2–28 Chapter 2: Board Components
Clock Circuitry
Arria V GX FPGA Development Board November 2013 Altera Corporation
Reference Manual
Table 2–23 lists the clock outputs for the development board.
Table 2–24 lists the crystal oscillators component references and manufacturing
information.
HSMC
HSMB_CLK_IN_P2 LVDS/LVTTL AU32 LVDS input from the installed HSMC cable or
board. Can also support 2x LVTTL inputs.
HSMB_CLK_IN_N2 LVDS/LVTTL AT32
PCI Express
Edge PCIE_REFCLK_P LVDS/LVTTL AG32
LVDS input from the PCI Express edge connector.
PCIE_REFCLK_N HCSL AG33
FMC
FMC_REFCLK_P0 LVDS AB9
LVDS input from the FMC board (drives two
REFCLKs on FPGA 2) FMC_REFCLK_P1 LVDS V9
FMC_REFCLK_N0 LVDS AB8
FMC_REFCLK_N1 LVDS V8
FMC_CLK_M2C_P0 LVDS AV19
LVDS input from the FMC board.
FMC_CLK_M2C_P1 LVDS AF21
FMC_CLK_M2C_N0 LVDS AU19
FMC_CLK_M2C_N0 LVDS AE21
Table 2–22. Off-Board Clock Inputs
Source
Schematic Signal
Name
I/O Standard
Arria V GX
FPGA Pin
Number
Description
Table 2–23. Off-Board Clock Outputs
Source
Schematic Signal
Name
I/O Standard
Arria V GX
FPGA Pin
Number
Description
HSMC HSMA_CLK_OUT0 2.5V CMOS AL14 FPGA CMOS output (or GPIO)
HSMC
HSMA_CLK_OUT_P1 LVDS/2.5V CMOS AU13 LVDS output. Can also support 2x CMOS
outputs.
HSMA_CLK_OUT_N1 LVDS/2.5V CMOS AT13
HSMC
HSMA_CLK_OUT_P2 LVDS/2.5V CMOS AM7 LVDS output. Can also support 2x CMOS
outputs.
HSMA_CLK_OUT_N2 LVDS/2.5V CMOS AL7
HSMC HSMB_CLK_OUT0 2.5V CMOS AJ33 FPGA CMOS output (or GPIO)
HSMC
HSMB_CLK_OUT_P1 LVDS/2.5V CMOS AM33
LVDS output. Can also support 2x CMOS
outputs.
HSMB_CLK_OUT_N1 LVDS/2.5V CMOS AL34
HSMC
HSMB_CLK_OUT_P2 LVDS/2.5V CMOS AU32 LVDS output. Can also support 2x CMOS
outputs.
HSMB_CLK_OUT_N2 LVDS/2.5V CMOS AD26
Table 2–24. Crystal Oscillator Component References and Manufacturing Information
Board
Reference
Description Manufacturer Manufacturer Part Number
Manufacturer
Website
X1, X4
125.000-MHz LVDS saw clock
oscillator
Epson
EG-2121CA 125.0000M-
LGPNL3
www.eea.epson.com
X5 25-MHz oscillator Epson SG-310SDF 25.0000M-B3 www.eea.epson.com
Y3 24-MHz crystal oscillator Epson FA-128 24.0000MB-W www.eea.epson.com
Y1, Y2, Y4, Y5 25-MHz crystal oscillator Epson FA-128 25.0000MB-C www.eea.epson.com