cx82100 Conexant Systems, Inc., cx82100 Datasheet - Page 105

• Manufacturer Part Number: cx82100
• Description: Home Network Processor Hnp
• Manufacturer: Conexant Systems, Inc.

7.5
101306C
Media Independent Interface (MII)
Conexant Proprietary and Confidential Information
The MII provides a port for transmit and receive data that is media independent, multi-
vendor interoperable, and supports all data rates and physical standards. The port consists
of data paths that are 4 bits wide in each direction as well as control and management
signals. Figure 7-4 shows the MII connector with signal names and the contact
assignment.
Figure 7-4. MII Connector
The primary function of the MII is to provide the interface to the EPHY and necessary
digital interface for EPHY management. The MII management interface utilizes a
communications protocol similar to a serial EEPROM. The 10/100 MAC MII interface
provides all services required by the MII, including encoding and decoding of MII.
CX82100 Home Network Processor Data Sheet
+5V
15 mm
ECRS
+5V
EC OL
20
40
ETXD[3:0]
ETXEN
ETXCK
ETXER
G rounds (22-39)
50 mm
ERXER
ERXCK
ERXDV
ERXD[3:0]
1
21
MD C
+5V
MDIO
1015435_031
+5V
7-7