lan9303 Standard Microsystems Corp., lan9303 Datasheet - Page 129

• Manufacturer Part Number: lan9303
• Description: Small Form Factor Three Port 10/100 Managed Ethernet Switch With Single Mii/rmii/turbo Mii
• Manufacturer: Standard Microsystems Corp.

Small Form Factor Three Port 10/100 Managed Ethernet Switch with Single MII/RMII/Turbo MII
Datasheet
SMSC LAN9303/LAN9303i
10.4.3
Port 0 PHY Mode SMI Managed
In PHY mode SMI managed, the internal PHYs, Virtual PHY, and SMI slave block are accessed via
the MII management pins. The PMI is not used in this mode.
The Virtual PHY interface is accessible via the SMI slave or the EEPROM Loader. Refer to
10.2, "SMI Slave Controller," on page 124
additional information.
Figure 10.1
Figure 10.3 MII Mux Management Path Connections - PHY Mode SMI Managed
MDI
MDCLK
MDI
MDCLK
MDI
MDCLK
MDI
MDCLK
Virtual PHY
SMI Slave
details the MII multiplexer management path connections for this mode.
Mode Selection
PHY2
PHY1
Management
Parallel
Parallel
Master
Slave
MDIO_ DIR
MDIO_ DIR
MDIO_ DIR
MDIO_ DIR
MDO
MDO
MDO
MDO
DATASHEET
129
Mode Selection
Management
and
Section 8.4, "EEPROM Loader," on page 113
MDO MDCLK
Parallel Slave
PMI
MDI
MDO_EnN
MDO
MDI
MDC_DIR
MDC_ OUT
MDC_IN
MDIO_DIR
MII Pins
Revision 1.3 (08-27-09)
MDIO
MDC
Section
for