Clock Generation; Oscillator (Differential) - Xilinx SP605 User Manual

FMC bypass jumper J19 must be connected between pins 1-2 (bypass) to enable JTAG
access to the FPGA on the basic SP605 board (without FMC expansion modules installed),
as shown in
with an expansion module that has a JTAG chain, jumper J19 must be set to connect pins
2-3 in order to include the FMC expansion module's JTAG chain in the main SP605 JTAG
chain.
X-Ref Target - Figure 1-7
The JTAG chain can be used to program the FPGA and access the FPGA for hardware and
software debug.
The JTAG connector (USB Mini-B J4) allows a host computer to download bitstreams to the
FPGA using the Xilinx iMPACT software tool. In addition, the JTAG connector allows
debug tools such as the ChipScope® Pro Analyzer tool or a software debugger to access
the FPGA. The iMPACT software tool can also program the BPI flash via the USB J4
connection. iMPACT can download a temporary design to the FPGA through the JTAG.
This provides a connection within the FPGA from the FPGAs JTAG port to the FPGAs BPI
interface. Through the connection made by the temporary design in the FPGA, iMPACT
can indirectly program the BPI flash from the JTAG USB J4 connector. For an overview on
configuring the FPGA, see

7. Clock Generation

There are three clock sources available on the SP605 .

Oscillator (Differential)

The SP605 has one 2.5V LVDS differential 200 MHz oscillator (U6) soldered onto the board
and wired to an FPGA global clock input.
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References
See the Epson EG-2121CA Data Sheet for more information. Search EG-2121CA at
Toyocom.
SP605 Hardware User Guide
UG526 (v1.1.1) February 1, 2010
Figure 1-7. When the VITA 57.1 FMC LPC expansion connector is populated
Bypass FMC LPC J2 = Jumper 1-2
Include FMC LPC J2 = Jumper 2-3
Figure 1-7: VITA 57.1 FMC LPC (J2) JTAG Bypass Jumper J19
"Configuration Options," page
Crystal oscillator: Epson EG-2121CA-200.0000M-LHPA
PPM frequency jitter: 50 ppm
[Ref 15]
www.xilinx.com
Detailed Description
J19
1
FMC_TDI_BUF
2
SYSACE_TDI
3
FMC_TD0
H - 1x3
UG526_07_092409
55.
Epson
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