PEF2091 Siemens Semiconductor Group, PEF2091 Datasheet - Page 241
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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6.8
6.8.1
Activation initiated by AR
<–––––
–––––>
<–––––
<–––––
<–––––
–––––>
<–––––
Activation initiated by ARX
<–––––
–––––>
<–––––
<–––––
[
<–––––
–––––>
<–––––
Semiconductor Group
NT
C/I DC
C/I DI
C/I PU
C/I DC
C/I AR
C/I AI
C/I AI
NT
C/I DC
C/I DI
C/I PU
C/I DC
C/I AR
C/I AI
C/I AI
Examples for Activation and Deactivation Control Codes
Complete Activation Initiated by LT
(1111
(1100
(1100
(1111
(0111
(1111
(1000
(1100
(1111
(1111
(0111
(1111
(1000
(1100
B
B
B
B
B
B
B
B
B
B
B
B
B
B
)
)
)
)
)
)
)
)
)
)
)
)
)
)
LT
CI/DC
C/IDI
C/I AR
C/I AR
C/I ARM
C/I UAI
C/I AI
LT
CI/DC
C/IDI
C/I ARX
C/I AR
C/I ARM
C/I EI3
C/I UAI
C/I AI
(1111
(1111
(1000
(1000
(0111
(1100
(1111
(1111
(1001
(1000
(1011
(0111
(1100
(1001
(1001
241
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
<––––– ; Start activation
<––––– ; Start activation
<––––– ; Initial state is "Deactivated"
–––––> ;
–––––> ; Activation proceeds
–––––> ; :
–––––> ; :
–––––> ; Activation complete
<––––– ; Initial state is "Deactivated"
–––––> ;
–––––> ; Activation proceeds
–––––> ; :
–––––> ; :only if T1 expires ]
–––––> ; :
–––––> ; Activation complete
;
;
;
;
Confirm that terminal is
active
Confirm that terminal is
active
Data Sheet 01.99
Programming
PEB 2091
PEF 2091
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