FLOYD User Manual rev 1.09
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13
PCIe Link Routing Map
The Jetson Nano and NX module contain a PCIe x4 link for use by external devices. On the Floyd model
FLD-BB01, this PCIe x4 link is routed to a PCIe switch and divided into 4 x1 links to support multiple
peripherals. On the FLD-BB02, the x4 link is directly connected to the M.2 socket, enabling higher bandwidth
for an installed M.2 device.
The NX module contains an additional PCIe x1 link. As a build option, the BB02 can be configured so that
this lane can be brought out to the second Ethernet port. In the standard BB01 and BB02 models, this PCIe
x1 link is unused.
Figure 5-11: PCIe Link Routing on Floyd
PCIe M.2 SSD Socket
Floyd contains an M.2 M-Key socket that accommodates a 2280 (22 mm wide and 80 mm long) form-factor
Non-Volatile Memory Express (NVMe) SSD add-in card. On model FLD-BB01, a PCIe x1 link is provided,
and on FLD-BB02, a x4 link is provided.
PCIe MiniCard Socket
Floyd model FLD-BB01 contains one Mini PCIe Socket that supports full-size modules with PCIe interface
only (no USB interface). On FLD-BB02, this socket is not installed.
Two threaded spacers are mounted on the board for convenient minicard installation. Two M2 screws (4-
6mm length) are used to fix the module in place.