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IP175G датащи(PDF) 11 Page - List of Unclassifed Manufacturers

номер детали IP175G
подробное описание детали  5 Port 10/100 Ethernet Integrated Switch
PDF  69 Pages
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производитель  ETC2 [List of Unclassifed Manufacturers]
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IP175G датащи(HTML) 11 Page - List of Unclassifed Manufacturers

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IP175G/GI/GH/GHI
Data Sheet
11 / 69
November 27, 2012
Copyright © 2012, IC Plus Corp.
IP175Gx-DS-R01.3
3.5 EEPROM interface /SMI (Serial Management interface)
Pin No.
Label
Type
Description
EEPROM (only 24C02, 24C04, 24C08 & 24C16 supported)
38
SCL/MDC
IPL/I
After reset, it is used as clock pin SCL of EEPROM. Its period is
longer than 10us. IP175G/GH stops reading EEPROM if it finds
there is no 0x55AA pattern in address 0.
After reading EEPROM, this pin will switch to SMI mode MDC
input.
39
SDA/MDIO
IPH,
I/O
After reset, it is used as data pin SDA of EEPROM.
A bi-directional multi-drop bus for accessing the internal registers.
It’s recommended to add a 4.7K pull up resistor connecting to
PVDD and a 30pf capacitor connecting to ground.
After reading EEPROM, this pin will switch to SMI mode MDIO for
read/write internal register.



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