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Features of COM Express variants
Issue C
11
USB support
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USB 2.0 supporting low/full/high speed modes.
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Two ports connected to PCI Express MiniCard socket.
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Two user accessible ports (Pin header, one client configurable).
•
Four ports on board-to-board connector.
Ethernet
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Gigabit Ethernet port supporting 10/100/1000 BaseT.
•
Output to board-to-board connector.
Serial ATA
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Two SATA outputs to board-to-board connector.
Serial Ports
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One port used to connect to on-board GPS receiver (build option).
•
One port used to connect to on-board Bluetooth module OR nanoZigBee (build
option).
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One port used to connect touch screen controller.
•
One port used for general purpose RS232 TX/RX port.
PCI Express
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Two PCIe MiniCard sockets connected to PCIE switch (one with a SIM card slot).
•
Four PCIe to COM Express board-to-board connectors (One from chipset, three from
PCIE switch).
SDIO/MMC
•
One MicroSD socket.
GPIO
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Eight GPIO on COM express connector.
•
Eight GPIO on header
TPM
•
Atmel Trusted Platform Module Device, TCG v1.2 compatible.
•
SMBUS interface.
COM Express board-to-board connector
•
Four PCI Express, LPC, four USB host, SMBus/I2C, HD Audio, one LVDS video
output, Gigabit Ethernet, two SATA, system and control, Power.
GPS receiver (build option)
•
20-channel GPS receiver SirFStar III chipset module.