LAN91C111I-NE SMSC, LAN91C111I-NE Datasheet - Page 66
LAN91C111I-NE
Manufacturer Part Number
LAN91C111I-NE
Description
Ethernet ICs Non-PCI 10/100 Ethernet MAC
Manufacturer
SMSC
Type
Single Chip MAC and PHYr
Datasheet
1.LAN91C111-NU.pdf
(128 pages)
Specifications of LAN91C111I-NE
Ethernet Connection Type
10 Base-T, 100 Base-TX
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Product
Ethernet Controllers
Number Of Transceivers
1
Standard Supported
802.3, 802.3u
Data Rate
10 Mbps, 100 Mbps
Supply Voltage (max)
5 V
Supply Voltage (min)
0 V
Supply Current (max)
140 mA
Maximum Operating Temperature
+ 85 C
Package / Case
TQFP-100
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Revision 1.91 (06-01-09)
8.22
BYTE
BYTE
BYTE
BYTE
BYTE
BYTE
BYTE
BYTE
HIGH
HIGH
HIGH
HIGH
LOW
LOW
LOW
LOW
Bank 3 - Multicast Table Registers
The 64 bit multicast table is used for group address filtering. The hash value is defined as the six most
significant bits of the CRC of the destination addresses. The three msb's determine the register to be
used (MT0-MT7), while the other three determine the bit within the register.
If the appropriate bit in the table is set, the packet is received.
If the ALMUL bit in the RCR register is set, all multicast addresses are received regardless of the
multicast table values.
Hashing is only a partial group addressing filtering scheme, but being the hash value available as part
of the receive status word, the receive routine can reduce the search time significantly. With the proper
memory structure, the search is limited to comparing only the multicast addresses that have the actual
hash value in question.
0
0
0
0
0
0
0
0
THROUG
OFFSET
H 7
0
0
0
0
0
0
0
0
0
MULTICAST TABLE
NAME
0
0
0
0
0
0
0
0
DATASHEET
MULTICAST TABLE 0
MULTICAST TABLE 1
MULTICAST TABLE 2
MULTICAST TABLE 3
MULTICAST TABLE 4
MULTICAST TABLE 5
MULTICAST TABLE 6
MULTICAST TABLE 7
66
0
0
0
0
0
0
0
0
READ/WRITE
TYPE
0
0
0
0
0
0
0
0
10/100 Non-PCI Ethernet Single Chip MAC + PHY
0
0
0
0
0
0
0
0
SYMBOL
MT
SMSC LAN91C111 REV C
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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