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データシートサーチシステム |
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データシートサーチシステム |
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LAN9500AI データシート(PDF) 40 Page - SMSC Corporation |
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LAN9500AI データシート(HTML) 40 Page - SMSC Corporation |
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40 / 66 page  USB 2.0 to 10/100 Ethernet Controller Datasheet Revision 1.1 (04-18-13) 40 SMSC LAN950x Family DATASHEET 5.5 Customized Operation Without EEPROM 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 |
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