User programmable GMII pin ordering.
鈻?/div>
IEEE 802.3u Auto-Negotiation and Parallel Detection
802.3u Standard Media Independent Interface (MII) or the
鈥?Fully Auto-Negotiates between 1000 Mb/s, 100 Mb/s,
IEEE 802.3z Gigabit Media Independent Interface (GMII).
and 10 Mb/s full duplex and half duplex devices
The DP83865 is a fourth generation Gigabit PHY with field
鈻?/div>
LED support for activity, full / half duplex, link1000,
proven architecture and performance. Its robust perfor-
link100 and link10 or user programmable (manual
mance ensures drop-in replacement of existing 10/100
on/off).
Mb/s equipment with 10/100/1000 Mb/s networking infra-
鈻?/div>
Supports 25 MHz operation with crystal or oscillator.
structure.
鈻?/div>
Requires only two power supplies, 1.8 V (core and ana-
log) and 2.5 V (analog and I/O). 3.3V is supported as an
Applications
alternative supply for I/O voltage.
The DP83865 fits applications in:
鈻?/div>
User programmable interrupt.
鈻?/div>
10/100/1000 Mb/s capable node cards
鈻?/div>
Supports Auto-MDIX at 10, 100 and 1000 Mb/s.
鈻?/div>
Switches with 10/100/1000 Mb/s capable ports
鈻?/div>
Supports JTAG (IEEE1149.1).
鈻?/div>
High speed uplink ports (backbone)
鈻?/div>
Ultra low power consumption of one watt typical.
鈻?/div>
Management port (MDC / MDIO).
鈻?/div>
128-pin PQFP package (14mm x 20mm).
鈻?/div>
WOL support.
System Diagram
10BASE-T
100BASE-TX
1000BASE-T
DP83820
10/100/1000 Mb/s
ETHERNET MAC
DP83865
10/100/1000 Mb/s
ETHERNET PHYSICAL LAYER
MAGNETICS
MII
GMII
RJ-45
25 MHz
crystal or oscillator
STATUS
LEDs
PHYTER
廬
is a registered trademark of National Semiconductor Corporation.
漏2002
National Semiconductor Corporation
www.national.com
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