lan9313 Standard Microsystems Corp., lan9313 Datasheet - Page 129

• Manufacturer Part Number: lan9313
• Description: Lan9313/lan9313i Three Port 10/100 Managed Ethernet Switch With Mii
• Manufacturer: Standard Microsystems Corp.

Three Port 10/100 Managed Ethernet Switch with MII
Datasheet
SMSC LAN9313/LAN9313i
9.4.2
MAC Mode SMI Managed
In MAC mode SMI managed, the internal PHYs and SMI slave block are accessed via the MII
management pins. The Virtual PHY and PMI are not used in this mode.
The Virtual PHY interface is accessible via the SMI slave or the EEPROM Loader. Refer to
9.2, "SMI Slave Controller," on page 125
additional information.
Figure 9.2
Figure 9.2 MII Mux Management Path Connections - MAC Mode SMI Managed
MDI
MDCLK
MDI
MDCLK
MDI
MDCLK
MDI
MDCLK
Virtual PHY
details the MII multiplexer management path connections for this mode.
SMI Slave
Mode Selection
PHY2
PHY1
Management
Parallel
Parallel
Master
Slave
MDIO_ DIR
MDIO_ DIR
MDIO_ DIR
MDIO_ DIR
MDO
MDO
MDO
MDO
DATASHEET
129
and
Mode Selection
Management
Section 8.2.4, "EEPROM Loader," on page 113
MDO MDCLK
Parallel Slave
PMI
MDI
MDO_EnN
MDIO_DIR
MDO
MDI
MDC_DIR
MDC_ OUT
MDC_IN
MII Pins
Revision 1.2 (04-08-08)
MDIO
MDC
Section
for