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SP605 Hardware User Guide www.xilinx.com 25
UG526 (v1.1.1) February 1, 2010
Detailed Description
SMA Connectors (Differential)
A high-precision clock signal can be provided to the FPGA using differential clock signals
through the onboard 50-ohm SMA connectors J38 (N) and J41 (P).
8. Multi-Gigabit Transceivers (GTP MGTs)
The SP605 provides access to 4 MGTs.
• One (1) MGT is wired to the PCIe x1 Endpoint (P4) edge connector fingers
• One (1) MGT is wired to the FMC LPC connector (J2)
• One (1) MGT is wired to MGT SMA connectors (J36, J37)
• One (1) MGT is wired to the SFP Module connector (P4)
The SP605 includes a set of six SMA connectors for the GTP (MGT) RX/TX Port and GTP
(MGT) Clock as described in Figure 1-10 and Table 1-10.
Table 1-9: SP605 Clock Source Connections
Source U1 FPGA Pin Schematic Net Name
Pin
Number
Pin Name
U6 200MHZ OSC
K22 SYSCLK_N 5 OUT_B
K21 SYSCLK_P 4 OUT
X2 27MHZ OSC AB13 USER_CLOCK 5 OUT
USER_SMA_CLOCK M19 USER_SMA_CLOCK_N J38.1 –
SMA Connectors M20 USER_SMA_CLOCK_P J41.1 –