LAN9500AI-ABZJ SMSC, LAN9500AI-ABZJ Datasheet - Page 39

• Manufacturer Part Number: LAN9500AI-ABZJ
• Description: Ethernet ICs Hi-Speed USB 2.0 10/100 Ethernet CTRL
• Manufacturer: SMSC

Specifications of LAN9500AI-ABZJ

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

USB 2.0 to 10/100 Ethernet Controller
Datasheet
SMSC LAN950x Family
5.5
ADDRESS
96h - FFh
EEPROM
8Ch
8Dh
89h
8Ah
8Bh
8Eh
8Fh
90h
91h
92h
93h
94h
95h
Customized Operation Without EEPROM
Table 5.8 EEPROM Example - 256 Byte EEPROM - LAN9500A/LAN9500Ai (continued)
Customized operation without EEPROM is supported only by LAN9500A/LAN9500Ai.
The device provides the capability to customize operation without the use of an EEPROM. Descriptor
information and initialization quantities normally fetched from EEPROM and used to initialize
descriptors and elements of the System Control and Status Registers may be specified via an alternate
mechanism. This alternate mechanism involves the use of the Descriptor RAM in conjunction with the
Attribute Registers and select elements of the System Control and Status Registers. The software
device driver orchestrates the process by performing the following actions in the order indicated:
Initialization of System Control and Status Register Elements in Lieu of EEPROM Load
Attribute Register Initialization
Descriptor RAM Initialization
Enable Descriptor RAM and Flag Attribute Registers as Source
Inhibit Reset of Select System Control and Status Register Elements
CONTENTS
EEPROM
(HEX)
A0
FA
FF
FF
01
00
09
04
00
00
03
00
00
-
Value to use as an argument to select this configuration
Index of String Descriptor describing this configuration
Bus powered and remote wakeup enabled
Maximum Power Consumption is 500 mA
Size of Full-Speed Interface Descriptor in Bytes (9 Bytes)
Descriptor Type (Interface Descriptor - 04h)
Number identifying this Interface
Value used to select alternative setting
Number of Endpoints used for this interface (Less endpoint 0)
Class Code
Subclass Code
Protocol Code
Index of String Descriptor Describing this interface
Data storage for use by Host as desired
DATASHEET
39
DESCRIPTION
Revision 1.0 (05-17-10)