DE4 User Manual
57
www.terasic.com
June 20, 2018
-
PLL_CLKIN_p
Programmable 100MHz
differential clock input
2.5-V or LVDS
PIN_B22
-
PLL_CLKIN_n
Programmable 100MHz
differential clock input
2.5-V or LVDS
PIN_A22
J15
SMA_CLKIN_p
SMA differential clock input 2.5-V or LVDS
PIN_B23
J19
SMA_CLKIN_n
SMA differential clock input 2.5-V or LVDS
PIN_A23
J13
SMA_GXBCLK_p
SMA transceiver reference
clock input
LVDS
PIN_W2
J17
SMA_GXBCLK_n
SMA transceiver reference
clock input
LVDS
PIN_W1
-
SATA_REFCLK_p
SATA reference clock input LVDS
PIN_AN2
-
SATA_REFCLK_n
SATA reference clock input LVDS
PIN_AN1
-
HSMA_REFCLK_p
HSMC-A transceiver
reference clock input
LVDS
PIN_J38
-
HSMA_REFCLK_n
HSMC-A transceiver
reference clock input
LVDS
PIN_J39
-
HSMB_REFCLK_p
HSMC-B transceiver
reference clock input
LVDS
PIN_AA2
-
HSMB_REFCLK_n
HSMC-B transceiver
reference clock input
LVDS
PIN_AA1
2
2
.
.
1
1
1
1
P
P
C
C
I
I
E
E
x
x
p
p
r
r
e
e
s
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s
The DE4 development board is designed to fit entirely into a PC motherboard with x8 or x16 PCI
Express slot. Utilizing built-in transceivers on a Stratix IV GX device, it is able to provide a fully
integrated PCI Express-compliant solution for multi-lane (x1, x4, and x8) applications. With the
PCI Express hard IP block incorporated in the Stratix IV GX device, it will allow users to
implement simple and fast protocol, as well as saving logic resources for logic application.
Figure
2–24
presents the pin connection established between the Stratix IV GX and PCI Express.
The PCI Express interface supports complete PCI Express Gen1 at 2.5Gbps/lane and Gen2 at
5.0Gbps/lane protocol stack solution compliant to PCI Express base specification 2.0 that includes
PHY-MAC, Data Link, and transaction layer circuitry embedded in PCI Express hard IP blocks.
The power of the board can be sourced entirely from the PCI Express edge connector when installed
into a PC motherboard. An optional PCIe external power source can be connected if larger power is
required on the DE4. It is recommended that users connect the PCIe external power connector to the
DE4 when either the HSMC or GPIO interface is occupied by a daughter card. The
PCIE_REFCLK_P signal is a differential input that is driven from the PC motherboard on this
Summary of Contents for ALTERA DE4
Page 1: ...DE4 User Manual 1 www terasic com June 20 2018 ...
Page 54: ...DE4 User Manual 54 www terasic com June 20 2018 ...
Page 83: ...DE4 User Manual 83 www terasic com June 20 2018 Figure 3 8 Access DDR2 SO DIMM memory ...
Page 92: ...DE4 User Manual 92 www terasic com June 20 2018 Figure 3 17 Fan Control of the DE4 ...
Page 150: ...DE4 User Manual 150 www terasic com June 20 2018 Figure 5 35 SOPC builder ...