Fpga Configuration - Xilinx Virtex-4 FX FPGA User Manual

Detailed Description
MGT Power Supply Module
The MGT power supply module supplies all voltages shown in
RocketIO transceivers. This module plugs in on the right side of the board on header J12
for the ML421 platform, and on header J9 for the ML423 and ML424 platforms.
The onboard regulators also have corresponding input voltage jacks to supply each
voltage independently from a bench-top power supply. This is done by removing the MGT
power supply enable jumpers from the headers that correspond to each supply voltage
listed in
external supply on its corresponding supply jack.
Table 3: Power Supply Module Jumpers
Power Max
Supply Current
Name Rating
AVCCAUXMGT 1.5A
VREF 1.5A
VTT TX LEFT 5A
AVCCAUXRX 5A
AVCCAUXTX 5A
VTT TX RIGHT 5A
VTT RX LEFT 1.5A
VTT RX RIGHT 1.5A

2. FPGA Configuration

The FPGA can only be configured in JTAG mode using one of the following options:
•
•
•
Using the configuration address DIP switches, one of eight bitstreams stored in the
CompactFlash memory card can be accessed through the onboard System ACE controller.
Note:
cable is used, thus causing no disruption in the JTAG chain.
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Table 3. An MGT power enable jumper must be removed before supplying an
Jack
Typical
Voltage
ML421 ML423
2.5V J22
1.2V J23
1.5V J19
1.2V J20
1.2V J21
1.5V J18
1.5V–2.5V J16
1.5V–2.5V J105
Parallel Cable III cable
Parallel Cable IV cable
System ACE controller
The System ACE controller is bypassed when the flying wire leads or the Parallel Cable IV
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Enable
Jumper
ML424
J22 J37 J11
J23 J58 J10
J19 J24 J7 X 2
J20 J25 J5 X 2
J21 J26 J4 X 2
J18 J18 J6 X 2
J15
J15 J8
J81 J105 J9
Table 3 to the DUT
Description
Analog supply for global bias
Optional supply for V circuit
REF
(not required) or band gap
reference voltage
Termination supply voltage for
transmitter A and B (left column)
Analog supply for non-I/O
circuits in receiver A and analog
supply for non-I/O circuits in
receiver B, global bias, and
reference clock circuits
Analog supply for non-I/O
circuits in transmitter pair
Termination supply voltage for
transmitter A and B (right
column)
Termination supply voltage for
receiver A and B (left column)
Termination supply voltage for
receiver A and B (right column)
ML42x User Guide
UG087 (v1.3) May 30, 2008
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