LAN9311-NU SMSC, LAN9311-NU Datasheet - Page 238

• Manufacturer Part Number: LAN9311-NU
• Description: IC ETHER SW 2PRT 16BIT 128-VTQFP
• Manufacturer: SMSC
• Type: Two Port Managed Ethernet Switchr

Specifications of LAN9311-NU

• Controller Type: Ethernet Switch Controller
• Interface: Serial EEPROM
• Voltage - Supply: 3.3V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 128-TQFP, 128-VQFP
• Product: Ethernet Switches
• Number Of Transceivers: 1
• Standard Supported: 802.3, 802.3u
• Data Rate: 10 MB, 100 MB
• Supply Voltage (max): 3.3 V
• Supply Voltage (min): 0 V
• Maximum Operating Temperature: + 70 C
• Ethernet Connection Type: 10 Base-T, 100 Base-TX
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• For Use With: 638-1076 - EVALUATION BOARD LAN9311-NU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 638-1075

Revision 1.7 (06-29-10)
19:16
BITS
15:0
CSR Byte Enable (CSR_BE[3:0])
This field is a 4-bit byte enable used for selection of valid bytes during write
operations. Bytes which are not selected will not be written to the
corresponding Switch Engine CSR.
CSR_BE[3] corresponds to register data bits [31:24]
CSR_BE[2] corresponds to register data bits [23:16]
CSR_BE[1] corresponds to register data bits [15:8]
CSR_BE[0] corresponds to register data bits [7:0]
Typically all four byte enables should be set for auto increment and auto
decrement operations.
CSR Address (CSR_ADDR[15:0])
This field selects the 16-bit address of the Switch Fabric CSR that will be
accessed with a read or write operation. Refer to
Accessible Switch Control and Status Registers,” on page 309
Switch Fabric CSR addresses.
DESCRIPTION
DATASHEET
238
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Table 14.12, “Indirectly
for a list of
TYPE
R/W
R/W
SMSC LAN9311/LAN9311i
DEFAULT
00h
Datasheet
0h