LAN91C111I-NS SMSC, LAN91C111I-NS Datasheet - Page 66

• Manufacturer Part Number: LAN91C111I-NS
• Description: IC ETHERNET CTLR MAC PHY 128-QFP
• Manufacturer: SMSC
• Type: Single Chip MAC and PHYr

Specifications of LAN91C111I-NS

• Controller Type: Ethernet Controller, MAC/PHY
• Interface: Serial EEPROM
• Voltage - Supply: 3.3V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 128-QFP
• Product: Ethernet Controllers
• Number Of Transceivers: 1
• Standard Supported: IEEE 802.3 or IEEE 802.3u
• Data Rate: 10 Mbps or 100 Mbps
• Supply Voltage (max): 5 V
• Supply Voltage (min): 0 V
• Supply Current (max): 140 mA
• Maximum Operating Temperature: + 85 C
• Ethernet Connection Type: 100BASE-T or 100BASE-T4 or 100BASE-TX or 10BASE-T
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 638-1014

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
Datasheet