Alaska 88E1111
Integrated 10/100/1000 Ultra Gigabit Ethernet
Transceiver
Copyright © 2020 Marvell Doc. No. MV-S100649-00 Rev. M
August 31, 2020 Document Classification: Public Page 3
PRODUCT OVERVIEW
The Alaska
®
Ultra 88E1111 Gigabit Ethernet Transceiver
is a physical layer device for Ethernet 1000BASE-T,
100BASE-TX, and 10BASE-T applications. It is
manufactured using standard digital CMOS process and
contains all the active circuitry required to implement the
physical layer functions to transmit and receive data on
standard CAT 5 unshielded twisted pair.
The 88E1111 device incorporates the Marvell Virtual
Cable Tester
®
(VCT™) feature, which uses Time Domain
Reflectometry (TDR) technology for the remote
identification of potential cable malfunctions, thus
reducing equipment returns and service calls. Using VCT,
the Alaska 88E1111 device detects and reports potential
cabling issues such as pair swaps, pair polarity and
excessive pair skew. The device will also detect cable
opens, shorts or any impedance mismatch in the cable
and report accurately within one meter the distance to the
fault.
The 88E1111 device supports the Gigabit Media
Independent Interface (GMII), Reduced GMII (RGMII),
Serial Gigabit Media Independent Interface (SGMII), the
Ten-Bit Interface (TBI), and Reduced TBI (RTBI) for
direct connection to a MAC/Switch port.
The 88E1111 device incorporates an optional 1.25 GHz
SERDES (Serializer/Deserializer). The serial interface
may be connected directly to a fiber-optic transceiver for
1000BASE-T/1000BASE-X media conversion
applications. Additionally, the 88E1111 device may be
used to implement 1000BASE-T Gigabit Interface
Converter (GBIC) or Small Form Factor Pluggable (SFP)
modules.
The 88E1111 device uses advanced mixed-signal
processing to perform equalization, echo and crosstalk
cancellation, data recovery, and error correction at a
gigabit per second data rate. The device achieves robust
performance in noisy environments with very low power
dissipation.
The 88E1111 device is offered in three different package
options including a 117-Pin TFBGA, a 96-pin aQFN
featuring a body size of only 9 x 9 mm, and a 128 PQFP
package.
Features
• 10/100/1000BASE-T IEEE 802.3 compliant
• Supports GMII, TBI, reduced pin count GMII
(RGMII), reduced pin count TBI (RTBI), and serial
GMII (SGMII) interfaces
• Integrated 1.25 GHz SERDES for 1000BASE-X fiber
applications
• Four RGMII timing modes
• Energy Detect and Energy Detect+ low power
modes
• Three loopback modes for diagnostics
• "Downshift" mode for two-pair cable installations
• Fully integrated digital adaptive equalizers, echo
cancellers, and crosstalk cancellers
• Advanced digital baseline wander correction
• Automatic MDI/MDIX crossover at all speeds of
operation
• Automatic polarity correction
• IEEE 802.3u compliant Auto-Negotiation
• Software programmable LED modes including LED
testing
• Automatic detection of fiber or copper operation
• Supports IEEE 1149.1 JTAG
• Two-Wire Serial Interface (TWSI) and MDC/MDIO
• CRC checker, packet counter
• Packet generation
• Virtual Cable Tester (VCT)