DA82562ET Intel, DA82562ET Datasheet - Page 13
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DA82562ET
Manufacturer Part Number
DA82562ET
Description
Manufacturer
Intel
Datasheet
1.DA82562ET.pdf
(40 pages)
Specifications of DA82562ET
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (min)
3V
Operating Supply Voltage (max)
3.45V
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
48
Lead Free Status / RoHS Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DA82562ET
Manufacturer:
HARRIS
Quantity:
117
Part Number:
DA82562ET
Manufacturer:
INTEL
Quantity:
20 000
4.0
4.1
4.1.1
4.1.1.1
Datasheet
Figure 3. 82562ET 10/100 Mbps Ethernet Solution
Table 2. 4B/5B Encoder
Physical Layer Interface Functionality
The 82562ET is designed to work in Data Terminating Equipment (DTE) mode only. It supports a
direct glueless interface to all components that comply with the LAN Connect specification. The
following figure shows how the 82562ET PLC can be used in a 10/100 Mbps Ethernet switch
design.
100BASE-TX Mode
100BASE-TX Transmit Blocks
The transmit subsection of the 82562ET accepts 3 bit wide data from the LAN Connect unit.
Another subsection passes data unconditionally to the 4B/5B encoder.
The 4B/5B encoder accepts nibble-wide data (4 bits) from the CSMA unit and compiles it into 5-
bit-wide parallel symbols. These symbols are scrambled and serialized into a 125 Mbps bit stream,
converted by the analog transmit driver into a MLT-3 waveform format, and transmitted onto the
Unshielded Twisted Pair (UTP) or Shielded Twisted Pair (STP) wire.
100BASE-TX 4B/5B Encoder
The 4B/5B encoder complies with the IEEE 802.3u 100BASE-TX standard. Four bits are encoded
according to the transmit 4B/5B lookup table. The lookup table matches a 5-bit code to each 4-bit
code. The table below illustrates the 4B/5B encoding scheme associated with the given symbol.
Symbol
0
1
2
3
4
5
System Bus Interface
I/O Control Hub 2
(ICH2) LAN
5B Symbol Code
Controller
01001
10100
10101
01010
01011
11110
4B Nibble Code
(LAN Connect
82562ET
Device)
0000
0001
0010
0100
0101
0011
Magnetics
Networking Silicon — 82562ET
Transmit Differential Pair
(TDP/TDN)
Receive Differential Pair
(RDP/RDN)
9