rtd cpuModule CMA22M Series, User Manual

Page: 57 / 106

BDM-610000069 Rev A Chapter 3: Connecting the cpuModule 49
The signals on the x16 link can also be used for additional outputs from the Integrated Graphics Device. Contact
RTD tech support for more details.
PCIe Link Configuration
This cpuModule supports a total of eight PCIe x1 links. The chipset, however, only provides five PCIe x1 links.
Four of the links on CN1 and CN2 are connected directly to the chipset. The other four are connected through
a PCIe packet switch, and share the bandwidth of a single x1 link back to the chipset. The links that are connected
to the PCIe switch do not support wake from S3 (D3cold). Only wake from S1 is supported. Table 30 below shows
the configuration of the PCIe x1 links on CN1.
Table 32 CN2 Link Configuration
Link Location Connection S3 Wake support PCIe Peer-To-Peer
0 Closest to CPU Direct Yes No
1 Direct Yes No
2 Direct Yes No
3 Farthest from CPU Direct Yes No