TR4 User Manual
44
www.terasic.com
March 30, 2017
PCIe connector.
The clock frequency for the programmable clock generators can be specified by using the TR4
control panel, TR4 system builder, or the external clock generator demo provided.
The associated pin assignments for clock buffer and SMA connectors to FPGA I/O pins are shown
in
Table 2–20
.
Table 2–20 Clock Inputs/Outputs Pin Assignments, Schematic Signal Names, and Functions
Board
Reference
Schematic
Signal Name
Description
I/O Standard
Stratix IV GX
Pin Number
U49-4
OSC_50_BANK1
Dedicated 50MHz clock
input for bank 1C
2.5-V
AB34
U21-4
OSC_50_BANK3
50MHz clock input for
bank 3C
2.5-V
AW22
U20-4
OSC_50_BANK4
50MHz clock input for
bank 4C
2.5-V
AV19
U12-4
OSC_50_BANK7
50MHz clock input for
bank 7C
1.5-V
A21
U13-4
OSC_50_BANK8
50MHz clock input for
bank 8C
1.5-V
B23
U11-6
HSMA_REFCLK_p HSMC-A transceiver
reference clock input
LVDS
AA2
U11-5
HSMA_REFCLK_n HSMC-A transceiver
reference clock input
LVDS
AA1
U5-6
HSME_REFCLK_p HSMC-E transceiver
reference clock input
LVDS
AA38
U5-5
HSME_REFCLK_n HSMC-E transceiver
reference clock input
LVDS
AA39
J20
SMA_CLKOUT_p
SMA differential clock
output
2.5V or LVDS
AC11
J19
SMA_CLKOUT_n
SMA differential clock
output
2.5V or LVDS
AC10
J16
SMA_GXBCLK_p
SMA transceiver
reference clock input
LVDS
J38
J17
SMA_GXBCLK_n
SMA transceiver
reference clock input
LVDS
J39
J21
SMA_CLKIN
SMA clock input
2.5V
AW19
Summary of Contents for TR4
Page 1: ...TR4 User Manual 1 www terasic com March 30 2017 y94 ...
Page 45: ...TR4 User Manual 42 www terasic com March 30 2017 Figure 2 24 Clock Connections of the TR4 ...
Page 58: ...TR4 User Manual 55 www terasic com March 30 2017 Figure 2 31 R199 R201 Position on TR4 ...
Page 67: ...TR4 User Manual 64 www terasic com March 30 2017 Figure 3 7 Access DDR3 SO DIMM Memory ...