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Pico E-15 Hardware Reference
www.picocomputing.com
Pico Computing
(206) 283-2178
150 Nickerson Street. Suite 311
Seattle, WA 98109
16
Tri-Mode Ethernet Interface
The Pico E-15 features the Marvell Alaska series 88E1111 tri-mode Ethernet transceiver.
Combined with the on-FPGA MAC (Middle access controller) a complete Ethernet solution is
offered. Communication between the MAC and PHY takes place over an industry standard
MII/GMII interface.
The Ethernet transceiver features 10/100/1000 full/half duplex operation. It will automatically
configure the physical interface on the fly for crossover or straight through operation. The PHY
can even automatically correct for common wiring mistakes. The PHY has a built in Time
Domain Reflectometer which can diagnose cable problems and pinpoint their distance away
from the transceiver.
The Ethernet interface on the Pico is magnetic-less allowing high speed, low power digital
interconnect directly to Ethernet backplanes. DO NOT directly connect the Ethernet interface
to a hub or switch without a magnetic isolation module.
The Marvell 88E1111 is the only user-accessible chip on the Pico E-15 that requires an NDA
for access to the datasheets. If you are interested in some of the advanced features not
supported by the native driver, contact Pico Computing for assistance in obtaining an NDA
from Marvell. Users are advised not to contact Marvell directly.
Ethernet Resources:
Marvell 88E1111 Webpage http://www.marvell.com/products/transceivers/singleport/88e1111.jsp