ML310 User Guide www.xilinx.com 63
UG068 (v1.01) August 25, 2004 1-800-255-7778
High-Speed I/O
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Figure 2-20 shows an edge view of the PM host board connectors on the ML310 board.
Each signal pair on the PM1 and PM2 host board connectors has a wide ground pin on the
opposite side of the plastic divider, as shown in Figure 2-21. The signal pairs alternate from
side to side along the length of the divider. All of the "B" and "E" pins are grounded on the
ML310. The "A", "C", "D", and "F" pins are signal pins.
PM1 Connector
The PM1 connector on the ML310 board provides the following signals:
• 8 RocketIO 3.125 Gb/s MGTs
• 3 LVDS pairs at 2.5V (can be used as 6 single-ended I/O at 2.5V)
• 1 LVDS clock pair at 2.5V
• 12 single- ended I/O at 2.5V
• 26 single-ended I/O at 3.3V
• 1 single-ended clock at 2.5V
• 1 pin not connected
PM2 Connector
The PM2 connector on the ML310 board provides the following signals:
• 39 LVDS pairs at 2.5V (can be used as 78 single-ended I/O at 2.5V)
Figure 2-20: Edge View of Host Board Connectors on ML310
Figure 2-21: Host Board Connector Pin Detail
PM1 Host Board Connector
PM2 Host Board Connector
Plastic Divider
Copper Pins
D2D1
E2
D4
D3 E4
B1
C2C1
B3
C4C3
A2
A1
B2
A4A3
B4
E1 F2F1 E3 F4F3