LAN9303-ABZJ SMSC, LAN9303-ABZJ Datasheet - Page 160

• Manufacturer Part Number: LAN9303-ABZJ
• Description: IC ETHER SW 3PORT 16BIT 56QFN
• Manufacturer: SMSC

Specifications of LAN9303-ABZJ

• Controller Type: Ethernet Switch Controller
• Interface: SMBus (2-Wire/I²C)
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 190mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 56-QFN
• Product: Ethernet Switches
• Standard Supported: Yes
• Data Rate: 10 Mbps/100 Mbps
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Supply Current (max): 0.19 A (Typ)
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• For Use With: 638-1095 - EVALUATION BOARD FOR LAN9303
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 638-1082

Revision 1.4 (07-07-10)
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 212
Switch Fabric CSR addresses.
DESCRIPTION
Small Form Factor Three Port 10/100 Managed Ethernet Switch with Single MII/RMII/Turbo MII
DATASHEET
160
Table 13.14, “Indirectly
for a list of
TYPE
R/W
R/W
SMSC LAN9303/LAN9303i
DEFAULT
00h
Datasheet
0h