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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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LAN9211 数据表(PDF) 41 Page - SMSC Corporation |
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LAN9211 数据表(HTML) 41 Page - SMSC Corporation |
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41 / 147 page  High-Performance Small Form Factor Single-Chip Ethernet Controller with HP Auto-MDIX Support Datasheet SMSC LAN9211 41 Revision 2.9 (03-01-12) DATASHEET READ (Read Location): This command will cause a read of the EEPROM location pointed to by EPC Address (EPC_ADDR). The result of the read is available in the E2P_DATA register. Figure 3.15 EEPROM READ Cycle WRITE (Write Location): If erase/write operations are enabled in the EEPROM, this command will cause the contents of the E2P_DATA register to be written to the EEPROM location selected by the EPC Address field (EPC_ADDR). The EPC_TO bit is set if the EEPROM does not respond within 30ms. Figure 3.16 EEPROM WRITE Cycle WRAL (Write All): If erase/write operations are enabled in the EEPROM, this command will cause the contents of the E2P_DATA register to be written to every EEPROM memory location. The EPC_TO bit is set if the EEPROM does not respond within 30ms. Figure 3.17 EEPROM WRAL Cycle 1 10 A6 EECS EECLK EEDIO (OUTPUT) A0 D7 D0 EEDIO (INPUT) t CSL 0 EECLK EEDIO (INPUT) EEDIO (OUTPUT) EECS 11 A6 A0 D7 D0 t CSL 0 EECLK EEDIO (INPUT) EEDIO (OUTPUT) EECS 1 D7 D0 0 01 t CSL |
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