LAN9312-NU SMSC, LAN9312-NU Datasheet - Page 238
LAN9312-NU
Manufacturer Part Number
LAN9312-NU
Description
Ethernet ICs Hi Per 2 Port 10/100 Ethernet Switch
Manufacturer
SMSC
Type
Two Port Managed Ethernet Switchr
Datasheet
1.LAN9312-NZW.pdf
(458 pages)
Specifications of LAN9312-NU
Ethernet Connection Type
10 Base-T, 100 Base-TX
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Product
Ethernet Switches
Number Of Transceivers
1
Standard Supported
802.3, 802.3u
Data Rate
10 Mbps, 100 Mbps
Supply Voltage (max)
3.3 V
Supply Voltage (min)
0 V
Supply Current (max)
185 mA, 295 mA
Maximum Operating Temperature
+ 70 C
Package / Case
TQFP-100
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LAN9312-NU
Manufacturer:
Microchip Technology
Quantity:
10 000
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Revision 1.7 (06-29-10)
14.2.6.6
31:16
BITS
15:0
RESERVED
Physical Address[47:32]
This field contains the upper 16-bits (47:32) of the physical address of the
Switch Fabric MACs.
Switch Fabric MAC Address High Register (SWITCH_MAC_ADDRH)
This register contains the upper 16-bits of the MAC address used by the switch for Pause frames. This
r e g i s t e r i s u s e d i n c o n j u n c t i o n w i t h
(SWITCH_MAC_ADDRL). The contents of this register are optionally loaded from the EEPROM at
power-on through the EEPROM Loader if a programmed EEPROM is detected. The least significant
byte of this register (bits [7:0]) is loaded from address 05h of the EEPROM. The second byte (bits
[15:8]) is loaded from address 06h of the EEPROM. These EEPROM values are also loaded into the
Host MAC Address High Register
after the initialization process has completed.
Refer to
this register.
EEPROM Loader.
Offset:
Section 9.6, "Host MAC Address," on page 119
Section 10.2.4, "EEPROM Loader," on page 149
1F0h
DESCRIPTION
High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
DATASHEET
(HMAC_ADDRH). The Host can update the contents of this field
238
Size:
S w i t c h F a b r i c M A C A d d r e s s L o w R e g i s t e r
for details on how the EEPROM Loader loads
contains additional details on using the
32 bits
TYPE
R/W
RO
SMSC LAN9312
DEFAULT
FFFFh
Datasheet
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