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LAN9730 데이터시트(PDF) 92 Page - Microchip Technology

부품명 LAN9730
상세설명  High-Speed Inter-Chip USB 2.0 to 10/100 Ethernet Controller
PDF  222 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN9730 데이터시트(HTML) 92 Page - Microchip Technology

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LAN9730/LAN9730i
DS00001946A-page 92
 2012-2015 Microchip Technology Inc.
EWDS (Erase/Write Disable): After issued, the EEPROM will ignore erase and write commands. To re-enable erase/
write operations issue the EWEN command.
EWEN (Erase/Write Enable): Enables the EEPROM for erase and write operations. The EEPROM will allow erase and
write operations until the “Erase/Write Disable” command is sent, or until power is cycled.
FIGURE 4-23:
EEPROM EWDS CYCLE
Note:
The EEPROM device will power-up in the erase/write-disabled state. Any erase or write operations will fail
until an Erase/Write Enable command is issued.
FIGURE 4-24:
EEPROM EWEN CYCLE
EWDS CYCLE
0
EECLK
EEDIO (INPUT)
EEDIO (OUTPUT)
EECS
10
00
tCSL
EWEN CYCLE
0
EECLK
EEDIO (INPUT)
EEDIO (OUTPUT)
EECS
10
11
tCSL



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