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LAN9220 Datasheet(PDF) 34 Page - Microchip Technology

Part # LAN9220
Description  16-bit Non-PCI Small Form Factor 10/100 Ethernet Controller with Variable Voltage I/O & HP Auto-MDIX Support
PDF  142 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN9220 Datasheet(HTML) 34 Page - Microchip Technology

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LAN9220
DS00002417A-page 34
 2006-2017 Microchip Technology Inc.
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.
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 3-16:
EEPROM WRITE CYCLE
FIGURE 3-17:
EEPROM WRAL CYCLE
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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