PEB24911HV13 Lantiq, PEB24911HV13 Datasheet - Page 57

• Manufacturer Part Number: PEB24911HV13
• Manufacturer: Lantiq

Specifications of PEB24911HV13

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Table 8
The EOC protocol operates in a repetitive command/response mode. Three identical
properly-addressed consecutive messages shall be received by the NT before an action
is initiated. In order to cause the desired action the Line Card controller continues to send
the message until it receives three identical consecutive EOC frames from the NT that
agree with the transmitted EOC frame.
The response of the NT is the echo of the received EOC frame. Any reply or echoed EOC
frame is sent upstream in the next available returning EOC frame. All actions to be
initiated at the NT shall be latching, permitting multiple EOC-initiated actions to be in
effect simultaneously. Latched functions are resolved by the RTN (return-to-normal)
command.
Access to the EOC is only possible when a superframe is transmitted. This is the case
in the following states:
In other states than the listed above all EOC-bits on the U-interface are clamped to high.
3.10
The on-chip EOC-processor is responsible for the correct insertion and extraction of
EOC-data on the U-interface. MON-0-messages provide the access to the device
internal EOC-registers. The EOC processor performs code repetition. This means that a
MON-0 message transporting the EOC command needs to be transferred only once
The EOC-processor can be programmed to automode or transparent mode:
EOC Auto Mode
– Acknowledgment: There is no acknowledgment in LT mode, i.e received EOC
– Latching: No latching is performed.
– Transfer to IOM
Data Sheet
– Line Active
– Pend. Transparent
– S/T Deactivated
– Pend. Deactivation
– Transparent
messages are not echoed.
LT has transmitted an EOC command. It causes the U-transceiver in LT mode to
compare the received and verified (by TLL) EOC messages with the last downstream
EOC Processor
Supported EOC-Commands
1
1
1
®
EOC
: ’Return Message Reception Function’ is enabled as soon as the
1 1 1 1 1 1 1 1
0 0 0 0 0 0 0 0
1 0 1 0 1 0 1 0
47
D/O
O
D
O/D
D
O
Functional Description
PEF 24911
RTN
UTC
2001-07-16
H