LAN9303MI-AKZE Datasheet, PDF (138/386 Pages) SMSC Corporation – Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII

Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII
Datasheet
10.3.1
The internal PHYs and optional external PHY (in MAC modes) are accessed via the PHY Management
Interface Access Register (PMI_ACCESS) and PHY Management Interface Data Register
(PMI_DATA). These registers allow read and write operations to all PHY registers. Refer to Section
13.2.5, "PHY Management Interface (PMI)," on page 179 for detailed information on these registers.
EEPROM Loader PHY Register Access
The PMI is also used by the EEPROM Loader to load the PHY registers with various configuration
strap values. The PHY Management Interface Access Register (PMI_ACCESS) and PHY Management
Interface Data Register (PMI_DATA) are also accessible as part of the Register Data burst sequence
of the EEPROM Loader. Refer to Section 8.4, "EEPROM Loader," on page 121 for additional
information.
Revision 1.5 (07-08-11)
138
DATASHEET
SMSC LAN9303M/LAN9303Mi