lan9303m Standard Microsystems Corp., lan9303m Datasheet - Page 138

• Manufacturer Part Number: lan9303m
• Description: Small Form Factor Three Port 10/100 Managed Ethernet Switch With Dual Mii/rmii/turbo Mii
• Manufacturer: Standard Microsystems Corp.

Revision 1.3 (08-27-09)
10.4.2
Port 0 MAC Mode I
In MAC mode I
SMI slave and the Virtual PHY are not used in this mode.
The Virtual PHY and PMI interfaces are accessible via the I
Refer to
Figure 10.2
Figure 10.2 MII Mux Management Path Connections - MAC Mode I
MDI
MDCLK
MDI
MDCLK
MDI
MDCLK
MDI
MDCLK
Section 8.4, "EEPROM Loader," on page 120
Virtual PHY
SMI Slave
details the MII multiplexer management path connections for this mode.
Mode Selection
PHY2
PHY1
Management
Parallel
Parallel
Master
Slave
2
C managed, the internal PHYs and the external PHY are accessed via the PMI. The
MDIO_ DIR
MDIO_ DIR
MDIO_ DIR
MDIO_ DIR
MDO
MDO
MDO
MDO
2
C Managed
Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII
DATASHEET
138
Mode Selection
Management
MDO MDCLK
for additional information.
Parallel Slave
2
C slave interface or the EEPROM Loader.
PMI
MDI
MDO_EnN
2
C Managed
SMSC LAN9303M/LAN9303Mi
MDO
MDI
MDC_DIR
MDC_ OUT
MDC_IN
MDIO_DIR
MII Pins
MDIO
MDC
Datasheet