DM9701F
Gigabit Ethernet PHY Transceiver
Gigabit Copper Ethernet Transceiver
The Davicom DM9701F is a standalone, low-power
10BASE-T/100BASE-TX/1000BASE-T Gigabit Ethernet
physical layer (PHY) transceiver that is fully compliant
with the IEEE 802.3 and 802.3ab standards.
The PHY is implemented using an advanced DSP
architecture that delivers superior performance and
noise immunity.
The DM9701F includes an internal hybrid, and can be
connected to a CAT-5 UTP or CAT-3 UTP
(10 Mbps only)cable through common magnetics.
It also supports several Ethernet MAC interfaces,
including the standard IEEE Medium Independent
Interface (GMII/MII), RGMII (which is a reduced 12-pin
version of the 25-pin GMII), Ten Bit Interface (TBI), and
the Reduced TBI (RTBI).
Several power management modes are incorporated
into the DM9701F to reduce power consumption,
including Wake-on-LAN, energy detect power-down, and
Power Optimizer TM functions. The Power Optimizer TM
function enables the PHY to automatically optimize
power consumption based on the operating mode
and cable quality.
The DM9701F is fully compliant with the IEEE 802.3
standard for auto-negotiation and also includes support
for the Speed Optimizer TM function. Speed Optimizer
TM maximizes throughput by examining the quality of
the cable and establishing the maximum speed that the
link can reliability support.
In addition to this feature, the DM9701F includes a
Cable Length Estimator function that provides first-level-
cable diagnostics.
Key Features:
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Fully standard compliant with:
IEEE 802.3ab 1000BASE-T
IEEE 802.3u (Fast Ethernet)
ISO 802-3/IEEE 802.3 (10BASE-T)
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Full auto-negotiation
Half- and Full-duplex operation
MAC Interface options: GMII, MII, RGMII,
TBI, and RTBI
Auto Crossover detection for all modes
Auto detection and correction of pair swap
(complete or half swap), and polarity
Jumbo packet support
Speed Optimizer mechanism
Power Optimizer function
Energy detect power-down
Cable diagnostics function
Internal hybrid
Low power consumption (1.5 watts)
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