PEF2091 Siemens Semiconductor Group, PEF2091 Datasheet - Page 161
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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4.4.3.1
Figure 73
Semiconductor Group
Any State
Pin-SSP or
Pin-RES or
µP-SSP or
µP-RES or
SSP or RES
LSU or (/LOF & T13E)
T7E & DI
T14S
NT Modes State Diagram
Any State
Pin-DT, µP-DT or DT
Pend. Receiver Res.
SN0/SP
Analog Loop Back
SN3T
Pending Timing
SN0
EC-Training AL
Receicer Reset
SN1
SN3
SN0
SN0
Wait for SF AL
State Transition Diagram in NT, TE and NT-PBX Modes
ARL
AR/FJ
Test
DC
DR
DC
DC
EI1
DR
T14S
DI
LSEC or T12E
BBD1
& SFD
T12S
T7S
act=0
act=0
-
-
-
-
-
T13S
TL
TL
T14E
T7S
T14S
act=0
T1E
LOF
T1E
LOF
LOF
EI1
LOF
LSEC or T12E
EI1
DI
act=1
T1S,T11S
act=1 & AI
SN3/SN3T
SN3/SN3T
SN3/SN3T
SN3T
SN3T
SN0
SN2
Synchronized 2
SN0
SN1
SN0
Synchronized 1
IOM
TN
DC
T11E
Transparent
ERROR S/T
EC-Training
EQ-Training
Wait for Act
Deactivated
Wait for SF
AR/ARL/FJ
AR/ARL/FJ
AR/ARL/FJ
AI/AIL/FJ
Alerting
DC/FJ
®
DC
PU
DC
DC
DC
act=0
Awaked
AR or TL
BBD0 & SFD
BBD0 & FD
LOF
TIM or (DIN=0)
or (SPU=0)
T12S
uoa=1
AI
act=1
act=0
act=0
act=0
act=1
PU
-
-
-
-
-
-
161
LOF
LSUE
LSUE
LSUE
dea=0
uoa=0
uoa=0
dea=0
dea=0
LSUE
dea=0
uoa=0
uoa=0
AR or TL
dea=0
LSUE
T1S,
T11S
/LSEC &
/T12E &
LOF
(LSEC or T12E)
DI
DI
Pend. Deact. S/T
SN3T
SN1
SN3
Pend. Deact. U
TN
T11E
EC-Training 1
LSUE
DI
Alerting 1
& DI
DR
DR
DR
DC
LSU
T12S
act=1/0
act=1
uoa=1
Operational Description
-
-
dea=0
Legend
?
dea=1
Yes
No
Signal to U
CI-Code Indication (DD)
T1S,T11S
State Name
Data Sheet 01.99
IN
OUT
SB to U
PEB 2091
PEF 2091
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