LAN9500AI datasheet(156/213 Pages) MICROCHIP

Nome de Peças	LAN9500AI

Descrição Electrónicos	LAN950x USB 2.0 to 10/100 Ethernet Controller

PDF	213 Pages

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Fabricante Electrônico	MICROCHIP [Microchip Technology]

Página de início	http://www.microchip.com

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156 / 213 page

LAN950x

DS00001875A-page 156

 2010 - 2015 Microchip Technology Inc.

7.3.30

STRING DESCRIPTOR ATTRIBUTES REGISTER 1 (STRNG_ATTR1)

This register is supported only by LAN9500A/LAN9500Ai.

This register sets the length values for the named string descriptors that have been loaded into Descriptor RAM via the

Data Port registers. The Descriptor RAM images may be used, in conjunction with this register, to facilitate customized

operation when no EEPROM is present.

Note 1: If a descriptor does not exist in Descriptor RAM, its size value must be written as 00h.

2: This register only affects system operation when an EEPROM is not present and the EEPROM Emulation

Enable (EEM) bit indicates Descriptor RAM and the Attributes Registers are to be used for descriptor pro-

cessing.

3: Writing to this register when an EEPROM is present is prohibited and will result in untoward operation and

unexpected results.

4: This register is protected by Reset Protection (RST_PROTECT).

Address:

0ACh

Size:

32 bits

Bits

Description

Type

Default

31:8

RESERVED

7:0

Interface String Descriptor Size (INTSTR_DESC_SIZE)

R/W

00h

LAN9500AI Folha de dados(PDF) 156 Page - Microchip Technology