Jumpers - Xilinx ML410 User Manual

R
ML410 Embedded Development Platform
UG085 (v1.7.2) December 11, 2008
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Jumpers

Note:
Pins should only be jumpered with the board powered off.
5V Fan (J8)
Table 2-42 shows the pinout of the 5V fan.
Table 2-42: 5V Fan BERG Header Connections
J8
Pin
1 +5V
2 Ground
Power Supply On (J19)
Jumper J19 selects the power supply options. Shorting pins 1 and 2 allows the ATX power
toggle circuit to control power on sequencing achieved by toggling SW7. Shorting pins 2
and 3 allows the ATX power supply AC switch to control power-on sequencing of the
board.
JTAG Source Select (J27)
The JTAG source select jumper (J27) enables the use of either the PC4 JTAG connector (J9)
or the CPU JTAG (J12) and FPGA JTAG/TRACE (P8) to source the FPGA JTAG pins. This
is available for third-party tool support. The multiplexing is performed by an external
device, 74LVC157A (U39), as shown in
Note:
To avoid contention after the FPGA is configured, this functionality should not be used if logic
that also drives the CPU JTAG connector (J12) or the FPGA JTAG/TRACE connector (P8) is
implemented.
Description
Figure 2-11.
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Detailed Description
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