PEF2091 Siemens Semiconductor Group, PEF2091 Datasheet - Page 182
PEF2091
Manufacturer Part Number
PEF2091
Description
ICs for Communications(ISDN Echocancellation Circuit)
Manufacturer
Siemens Semiconductor Group
Datasheet
1.PEF2091.pdf
(298 pages)
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Initialization (LT side)
Acknowledgment (NT and LT side)
Corrupt CRCs (CCRC)
If the EOC Transparent mode is used on the NT side, or if one of the LT modes is used
(see "EOC Auto/Transparent Mode", page 55) this command requests the IEC-Q to
transmit corrupted (i.e. inverted) CRCs. It will be executed immediately.
If the EOC Auto mode is used on the NT side the IEC-Q will not react to this command.
This command is delivered by the MON-8 message (see also "MON-8 Codes", page
228).
Initialization (NT [transparent only], LT [auto/transparent])
No acknowledgment will be issued.
Normal (NORM)
Disables all previously sent MON-8 latching commands. The command may be used in
Auto and Transparent mode in LT modes and in Transparent mode in NT modes.
If the EOC Auto mode is used on the NT side the IEC-Q will not react to this command.
Initialization (NT [Transparent only], LT [Auto/Transparent]):
No acknowledgment will be issued.
0
0
1
1
MON-0
MON-0
MON-8
MON-8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
NORM
CCRC
RTN
RTN
0
0
0
0
1
1
0
0
182
Return to Normal
Return to Normal
Corrupt CRC
Normal
1
1
1
1
1
1
1
1
1
1
1
1
Operational Description
1
1
1
1
1
1
0
1
Data Sheet 01.99
1
1
0
1
PEB 2091
PEF 2091
1
1
0
1
1
1
0
1
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