Nvidia BlueField-3 User Manual page 91

Pin# Signal Name
55 PCIE_CX_CPU_15P
56 PCIE_CX_CPU_15N
57 GND
58 S_PERST1_CONN_L
59
Wire Type
Micro coax 38
Micro coax 38
GND BAR
Micro coax 38
No Wire
AWG# Detailed
Description
Connect from the
White Cabline CA-II
Plus harness to the
PCIe x16 Rx lanes of
the CPU/GPU/End-
Point. 220nF caps
are required on this
signal on the
BlueField DPU.
Connect from the
White Cabline CA-II
Plus harness to the
PCIe x16 Rx lanes of
the CPU/GPU/End-
Point. 220nF caps
are required on this
signal on the
BlueField DPU.
PCIe compliant
PERST_L (active low
PCI Reset) signal for
the PCIe Cabline CA-
II Plus Connectors.
The direction of this
PERST_L signal
depends on the
implementation:
When connecting a
CPU root complex to
the PCIe Cabline CA-
II Plus interface, this
signal is driven from
the motherboard
side (from the CPU),
to the BlueField
DPU. When
connecting a GPU or
an end point to the
PCIe Cabline CA-II
Plus interface, this
signal is driven from
the BlueField DPU
side (which operates
as a PCIe switch in
this case), to the
GPU or end-point on
the motherboard
side.
Pin# on the
other end
55
56
57
58
59
91