High-speed serial (p4), Table 6: high-speed serial connector pinout (p4) – Connect Tech PCI-104 User Manual
Page 12
Connect Tech FreeForm/PCI-104 User Manual
Revision 0.02
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High-speed Serial (P4)
The high-speed serial connector carries four Rocket (GTP) I/O channels, each with a dedicated
transmit and receive differential pair. These channels are capable of operating up 3.125 Gbps,
depending on configuration. For more information on Rocket I/O capabilities, visit the Xilinx
website:
Table 6: High-Speed serial Connector Pinout (P4)
Pin
Signal
Direction
Notes
1
MTGRXN0_112
Input
(b)
3
MTGRXP0_112
Input
(b)
2
MTGTXN0_112
Output
(b)
4
MTGTXP0_112
Output
(b)
5
HSS_USER_IO(0) Input/Output (a), (d)
7
HSS_USER_IO(1) Input/Output (a), (d)
6
HSS_USER_IO(2) Input/Output (a), (d)
8
HSS_USER_IO(3) Input/Output (a), (d)
9
MTGRXN1_112
Input
(b)
11
MTGRXP1_112
Input
(b)
10
MTGTXN1_112
Output
(b)
12
MTGTXP1_112
Output
(b)
13
3.3V
Power
(a)
15
3.3V
Power
(a)
14
3.3V
Power
(a)
16
3.3V
Power
(a)
17
MTGRXN0_114
Input
(c)
19
MTGRXP0_114
Input
(c)
18
MTGTXN0_114
Output
(c)
20
MTGTXP0_114
Output
(c)
21
3.3V
Power
(a)
23
3.3V
Power
(a)
22
3.3V
Power
(a)
24
3.3V
Power
(a)
25
MTGRXN1_114
Input
(c)
27
MTGRXP1_114
Input
(c)
26
MTGTXN1_114
Output
(c)
28
MTGTXP1_114
Output
(c)
Notes:
a)
Pins have a different function from Revision B.
b)
The Rocket I/O (GTP) are organized into tiles, where each tile has two transceivers and
shares a common PLL. In this design, tiles 112 and 114 are used.
c)
Tile 112 has AC coupling capacitors on the TX pairs, validated at PCI Express data rates
(2.5 Gbps).
d)
Tile 114 has AC coupling capacitors on both the RX and TX pairs, validated at SATA
data rates (1.5 Gbps).
e)
HSS_USER_IO are flexible LVCMOS side-band signals.
WARNING
If connecting two FreeForm/PCI-104’s together using the Rocket I/O
interface in a cross-over fashion; care must be taken. Ensure that only
cables provided by Connect Tech are used. Cables ordered directly
from Samtec or a third party could result in damage to the cable and/or
the FreeForm/PCI-104 board itself.