參數(shù)資料
型號(hào): PSB21911
廠商: SIEMENS A G
元件分類: 數(shù)字傳輸電路
英文描述: ISDN Echocancellation Circuit for Terminal Applications IEC-Q TE
中文描述: DATACOM, ISDN ECHO CANCELLER
文件頁數(shù): 161/164頁
文件大小: 1401K
代理商: PSB21911
Semiconductor Group
161
11.97
PSB 21911
PSF 21911
Appendix
U-Transceiver State Diagram
Figure 68 U-Transceiver State Diagram
ITD09705
Any State
Pin-DT or DT
Any State
Pin-SSP or
Pin-RES or
SSP or RES
DC
Deactivated
.
0
SN
SN0
IOM
.
PU
DC
Alerting
.
TN
SN1
.
EC-Training
DC
SN0
.
EQ-Training
DC
SN2
.
Wait for SF
DC
DC
Synchronized 1
SN3/SN3T
AR/ARL
AR/ARL
act = 1
Wait for Act
AI/AIL
Transparent
SN3T
AR/ARL
Error S/T
SN0
Pending Timing
DC
.
AR
Analog Loop Back
DC
Wait for SF AL
3
SN
DC
EC-Training AL
.
1
SN
SN0/SP
.
Test
DR
DR
EC-Training 1
.
1
SN
TN
.
Alerting
DR
T11E
DR
Pend. Deact. S/T
3
SN
SN0
Pend. Receive Res.
EI1
LSU or (/LOF
.
Pend. Deact. U
DC
DR
Receive Reset
.
0
SN
AR or TL
TIM or DIN = 0
T14 S
TL
T14 E
T14 S
T11S
T1S,
T12S
T11E
PU
LSEC or T12E
BBD0 & FD
LSUE
or T1E
T1E
LOF
BBD0 & SFD
act = 0
uoa = 1
act = 0
Synchronized 2
uoa = 0
LSUE
dea = 0
dea = 0
LSUE
LOF
LOF
act = 1
EI1
LOF
act = 1
SN3T
act = 0
EI1
uoa = 0
dea = 0
LSUE
LSUE
dea = 0
uoa = 0
uoa = 0
LSUE
dea = 0
act = 0
AI
act = 0
LOF
act = 1 & AI
DI
DI
T12S
(LSEC or T12E)
& DI
1
LOF
DI
LSUE
dea = 0
act = 1/0
LSU
act = 1
SN3T
dea = 1
uoa = 1
No
Yes
& T13E)
T13S
T7S
TL
T7S
& DI
T7E
act = 0
act = 0
SN3T
ARL
BBD1 & SFD
T14 S
DI
Awaked
AR or TL
DI
T1S,
T11S
T11S
T1S,
LSEC or T12E
T12S
SN3/SN3T
SN3/SN3T
R
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