Off-board input/output clock, Off-board input/output clock –22 – Altera Arria V SoC Development Board User Manual
Page 30
2–22
Chapter 2: Board Components
Clock Circuitry
July 2014
Altera Corporation
Reference Manual
Off-Board Input/Output Clock
The development board has input and output clocks which can be driven onto the
board. The output clocks can be programmed to different levels and I/O standards
according to the FPGA device’s specification.
lists the clock inputs for the development board.
lists the clock outputs for the development board.
Table 2–14. Off-Board Clock Inputs
Source
Schematic Signal Name
I/O Standard
Arria V SoC
Pin Number
Description
SMA
SMA_CLKIN
2.5-V CMOS
—
Clock input to the global clock network.
SMA
OSC2_CLK_SMA
2.5-V CMOS
—
Multiplexed clock input to OSC2 of the HPS.
FMC Port A
FMC_CLK_M2C_P[1:0]
LVDS
B22, A22
LVDS input from the installed FMC card to
global clock inputs.
FMC_CLK_M2C_N[1:0]
LVDS
C22, A21
FMC Port A
FMC_LA_RX_CLK_P
LVDS
H21
LVDS input from the installed FMC card to
global clock inputs.
FMC_LA_RX_CLK_N
LVDS
J21
FMC Port A
FMC_LA_RX_P7
LVDS
C20
LVDS input from the installed FMC card to
global clock inputs.
FMC_LA_RX_N7
LVDS
D20
FMC Port A
FMC_GBTCLK_M2C_P[1:0]
LVDS
AC31, AA31
LVDS input from the installed FMC card to
dedicated reference clock inputs.
FMC_GBTCLK_M2C_N[1:0]
LVDS
AC32, AA32
FMC Port B
FMCB_CLK_M2C_P[1:0]
LVDS
C34, G34
LVDS input from the installed FMC card to
global clock inputs.
FMCB_CLK_M2C_N[1:0]
LVDS
D34, H34
FMC Port B
FMCB_LA_RX_CLK_P
LVDS
E34
LVDS input from the installed FMC card to
global clock inputs.
FMCB_LA_RX_CLK_N
LVDS
F34
FMC Port B
FMCB_LA_RX_P7
LVDS
N34
LVDS input from the installed FMC card to
global clock inputs.
FMCB_LA_RX_N7
LVDS
N33
FMC Port B
FMCB_GBTCLK_M2C_P[1:0]
LVDS
AG32, AE31
LVDS input from the installed FMC card to
dedicated reference clock inputs.
FMCB_GBTCLK_M2C_N[1:0]
LVDS
AG33, AE32
Table 2–15. Off-Board Clock Outputs
Source
Schematic Signal
Name
I/O Standard
Arria V SoC
Pin Number
Description
FMC Port A
FMC_LA_TX_CLK_P
LVDS
M23
LVDS output.
FMC_LA_TX_CLK_N
LVDS
N23
FMC Port B
FMCB_LA_TX_CLK_P
LVDS
L30
LVDS output.
FMCB_LA_TX_CLK_N
LVDS
M30
PCI Express
Socket
PCIE_REFCLK_SYN_P
HCSL
AF8
HCSL output to the PCI Express socket.
PCIE_REFCLK_SYN_N
HCSL
AF7