Artesyn COMX-P1022 Installation and Use (July 2014) - Manual (Page 69)

Functional Description
COMX-P1022 COM Express Module Installation and Use (6806800M04C) 69
U-boot should provide commands to scan, read from or write to USB stick. FAT/FAT32/ext2 file
system is supported.
4.12 PCI Express
There are three PCI Express on COMX-P1022 . The PCI Express are all routed to the carrier
board.
4.13 Ethernet (eTSEC)
COMX-P1022 provides three enhanced three-speed Ethernet controllers (eTSECs) which
interface to 10 Mbps, 100 Mbps, and 1 Gbps Ethernet/IEEE 802.3™ networks. The following
POR Configurations mean that the eTESEC1, 2, 3 are working in RGMII Mode.
4.14 SATA
COMX-P1022 has two SATA controllers. The serial ATA controller is a high-performance SATA
solution incorporating some of the latest SATA-IO extensions. The SATA may also be referred to
as a host bus adapter (HBA). The SATA controller is designed to operate in a system that
supports command queuing and, in particular, a switching scheme based on a frame
information structure (FIS) using port multipliers.
FIS-based switching requires the SATA controller to maintain in hardware a context for each
command it has queued at the devices that are attached to it. FIS-based switching also requires
the SATA controller to maintain a queue per attached device ensuring that the command issue
order for each device is maintained. It can be used in SATA controllers, as well as storage area
network (SAN), network attached storage (NAS), and RAID (redundant array of
independent/inexpensive disks) devices.