Teledyne LeCroy PCI Express 2.0 Mid-Bus Probe Ver.2.40 - Manual (Page 19)

Teledyne LeCroy PCIe 2.0 Mid-Bus Probe Installation Guide Version 2.4
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4.5 Pin Assignments for x4 Lane Widths
For x4 lane widths, either a full-size header or a half-size header can be used. The diagram below shows
the recommended pin assignments for x4 configurations (keep in mind that any of modifications
mentioned in Section 4.2 can be applied, and in addition the lane swizzling feature of the Summit T3-16
and T2-16 systems noted in Section 4.2).
Dual x4 (Bi-directional) Mid-Bus Probe
Pinout on a Full-size Header
Pin Signal Name Pin Signal Name
G1 GND (Gen2 only)
2 GND 1 C0p- Upstream1
4 C0p- Downstream1 3 C0n- Upstream1
6 C0n- Downstream1 5 GND
8 GND 7 C1p- Upstream1
10 C1p- Downstream1 9 C1n- Upstream1
12 C1n- Downstream1 11 GND
14 GND 13 C2p- Upstream1
16 C2p- Downstream1 15 C2n- Upstream1
18 C2n- Downstream1 17 GND
20 GND 19 C3p- Upstream1
22 C3p- Downstream1 21 C3n- Upstream1
24 C3n- Downstream1 23 GND
26 GND 25 C0p- Upstream2*
28 C0p- Downstream2* 27 C0n- Upstream2*
30 C0n- Downstream2* 29 GND
32 GND 31 C1p- Upstream2*
34 C1p- Downstream2* 33 C1n- Upstream2*
36 C1n- Downstream2* 35 GND
38 GND 37 C2p- Upstream2*
40 C2p- Downstream2* 39 C2n- Upstream2*
42 C2n- Downstream2* 41 GND
44 GND 43 C3p- Upstream2*
46 C3p- Downstream2* 45 C3n- Upstream2 1
48 C3n- Downstream2* 47 GND
G2 GND (Gen2 only)
Note that in a full-size header there is room for up to
two x4 PCIe bus connections (pins 1-24 and 25-48).
If using a PETracer analyzer, the analyzer will always
look for the x4 link in the top set of pins (pins 1-24),
although by physically reversing the header connector
you can also connect to the lowest set (pins 25-48).
If using a Summit T2-16 Analyzer, you can use the
lane swizzling feature to define any connection
pattern and therefore connect to any of the two
possible locations.
With either analyzer, although connection to more
than one bus is possible, traffic is recorded from only
one designated bus at any given time
.
x4 (Bi-directional) Mid-Bus Probe Pinout
on a Half-size Header
Pin Signal Name Pin Signal Name
G1 GND (Gen2 only)
2 GND 1 C0p- Upstream
4 C0p- Downstream 3 C0n- Upstream
6 C0n- Downstream 5 GND
8 GND 7 C1p- Upstream
10 C1p- Downstream 9 C1n- Upstream
12 C1n- Downstream 11 GND
14 GND 13 C2p- Upstream
16 C2p- Downstream 15 C2n- Upstream
18 C2n- Downstream 17 GND
20 GND 19 C3p- Upstream
22 C3p- Downstream 21 C3n- Upstream
24 C3n- Downstream 23 GND
G2 GND (Gen2 only)