Kontron COMe-cOHXX - Manual (Page 44)

Kontron COMe-cOH2/COMe-cOH6 User’s Guide
www.kontron.com
39
4.1.5 Connector J5 –CPLD
TBD
4.1.6 PCI Express Interface
The PCI Express*1.0 or 2.0 general purpose lanes provide a fast connection
interface for many different system devices, such as network controllers, I/O
controllers or express card devices. The implementation of this subsystem
complies with the ETXexpress® COM Express Specification. Refer to the PICMG
COM Express® Design Guide for additional implementation information.
The COMe-cOH# COM supports up to 6 PCI Express lanes. PCIe lanes 0 – 3 are
software-configurable as x4, x2, or x1. PCIe lanes 4 – 5 are software
configurable as x1 or x2. See Table 9 for detailed configuration information.
Table 9: PCI Express Configuration (TBD)
Source 1 Optional Standard Target
AMD FCH
AMD FCH
-
-
-
-
-
-
4.1.7 USB Interface
The USB interface supports both USB 2.0 and USB 3.0 (new with COM Express
Type 6).
USB 2.0 Interface
Eight high speed USB 2.0 ports are brought from the Fusion Control Hub to the
COM Express A-B connector. The FCH employs three EHCI controllers. The eight
COM Express USB ports are distributed with two EHCI controllers serving three
COM Express ports each and the third EHCI controller serving the remaining
two COM Express ports.
Table 10 shows how the eight USB 2.0 ports are used for USB configuration in
the COMe-cOH# module.