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LAN9250 Datasheet(PDF) 291 Page - Microchip Technology

Part # LAN9250
Description  Integrated Ethernet PHY with HP Auto-MDIX
PDF  421 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN9250 Datasheet(HTML) 291 Page - Microchip Technology

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 2015 Microchip Technology Inc.
DS00001913A-page 291
LAN9250
FIGURE 13-8:
EEPROM LOADER FLOW DIAGRAM
Byte 0 = A5h
N
DIGITAL_RST, RST#,
POR, RELOAD
Y
EPC_BUSY = 1
Read Byte 0
Read Bytes 1-6
Write Bytes 1-6 into host
MAC Address Registers
Read Byte 7-16
Byte 7 = A5h
Y
Write Bytes 8-16 into
Configuration Strap
registers
Load registers with
current straps and restart
PHY Auto-negotiation
Read Byte 17
Byte 17 = A5h
Do register data loop
Y
Load registers with
current straps and restart
PHY Auto-negotiation
N
EPC_BUSY = 0
HMAC Reset
Byte 0 = A5h
Read Bytes 1-6
Write Bytes 1-6 into host
MAC Address Registers
Y
Y
EPC_BUSY = 1
Read Byte 0
N
N



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