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LAN9313 Datasheet(PDF) 130 Page - SMSC Corporation

Part # LAN9313
Description  Three Port 10/100 Managed Ethernet Switch with MII
PDF  398 Pages
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Manufacturer  SMSC [SMSC Corporation]
Direct Link  http://www.smsc.com
Logo SMSC - SMSC Corporation

LAN9313 Datasheet(HTML) 130 Page - SMSC Corporation

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Three Port 10/100 Managed Ethernet Switch with MII
Datasheet
Revision 1.2 (04-08-08)
130
SMSC LAN9313/LAN9313i
DATASHEET
9.4.3
MAC Mode I2C/SPI Managed
In MAC mode I2C or SPI managed, the internal PHYs and the external PHY are accessed via the PMI.
The SMI slave and the Virtual PHY are not used in these modes.
The Virtual PHY and PMI interfaces are accessible via the I2C/SPI slave interfaces or the EEPROM
Loader. Refer to Section 8.3, "SPI/I2C Slave Controller," on page 118 and Section 8.2.4, "EEPROM
Loader," on page 113 for additional information.
Figure 9.3 details the MII multiplexer management path connections for this mode.
Figure 9.3 MII Mux Management Path Connections - MAC Mode I2C/SPI Managed
SMI Slave
MDI
MDO
MDIO_ DIR
MDCLK
Parallel
Master
Virtual PHY
MDI
MDO
MDIO_ DIR
MDCLK
Parallel
Slave
PHY2
MDI
MDO
MDIO_ DIR
MDCLK
PHY1
MDI
MDO
MDIO_ DIR
MDCLK
Management
Mode Selection
MII Pins
MDI
MDO
MDIO_DIR
MDC_IN
MDC_ OUT
MDC_DIR
Management
Mode Selection
PMI
MDI
MDO MDCLK
Parallel Slave
MDO_EnN
MDIO
MDC



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