PEF22827EL-V11 Lantiq, PEF22827EL-V11 Datasheet - Page 71

• Manufacturer Part Number: PEF22827EL-V11
• Manufacturer: Lantiq

Specifications of PEF22827EL-V11

• Lead Free Status / RoHS Status: Supplier Unconfirmed

4.5.4
When configured as an Ethernet MAC, the digital transceiver can be connected to an
Ethernet PHY through MII or RMII interfaces. In this case, the Serial Management
Interface (SMI) provides access to the attached Ethernet PHY registers.
When configured as Ethernet PHY, the digital transceiver can be connected to an
Ethernet MAC through MII, RMII or SMII interfaces. In this case, the digital transceiver
contains an SMI interface and registers that allow any MAC or switch to control the digital
transceiver through the interface.
MAC or PHY configuration only affects the MII interface when the clock direction is as
expected.
For details, see
4.5.5
Status registers and counters are provided to support Management Information Base
(MIB) functionality.
For details, see
4.5.6
When configured as a MAC, the digital transceiver adapts speed and duplex mode by
polling the attached Ethernet PHY. In PHY mode, the digital transceiver acts like an
Ethernet PHY by supporting full standard SMI control and emulating auto negotiation.
4.5.7
The digital transceiver supports an Embedded Overhead Channel (EOC) as specified in
ETSI, ANSI and ITU standards.
The EOC provides a clear channel between the LT and NT for the exchange of system
management data and traffic control. Data exchanged includes system-related
primitives, performance parameters, test parameters and configuration and
maintenance commands.
For a complete list, see the appropriate table in
EOC traffic uses dedicated pins as described in
Page
The PMS-TC multiplexes external EOC traffic into the internal VOC stream. A special
VOC opcode (FC
There it is extracted from the PMS-TC frame and transmitted on the EOC pins to an
external management entity.
Preliminary Data Sheet
42.
MII Interface and Configuration
MIB Support
Speed and Duplex Mode Adaptation
Embedded Overhead Channel (EOC)
“Network Interfaces” on Page
“Network Interfaces” on Page
H
) is used to carry the EOC data to the remote side (either NT or LT).
71
Functional Description – Digital Block
Reference [2] on page
124.
124.
Table 4 "EOC and PCM Pins" on
Rev. 1.1, 2005-01-30
291.
VDSL6100i
PEF 22827