PEF2091 Siemens Semiconductor Group, PEF2091 Datasheet - Page 51

• Manufacturer Part Number: PEF2091
• Description: ICs for Communications(ISDN Echocancellation Circuit)
• Manufacturer: Siemens Semiconductor Group

Table 2
Mode
NT
NT
NT-Auto
Activation
TE
TE
NT-PBX
LT
COT-512
COT-1536 0
LT-RP
NT-RP
1) In stand-alone mode this name refers to the corresponding pin
2) 1 DCL-period high-phase of FSC at superframe position
3) CLS-clock signal not available while device is in power-down. Synchronized to the U-interface
4) CLS-clock signal available while device is in power-down. Not synchronized to the U-interface
Semiconductor Group
In µP mode this name refers to the corresponding bit in register STCR
2 DCL-periods high-phase of FSC at normal position
Mode Selection
Stand-Alone Mode/µP Mode
Burst
0
0
0
0
0
1
1
0
0
0
Setting Modes of Operation (Stand-Alone and µP Mode)
1)
LT
0
0
0
0
0
0
1
1
1
1
0
1)
TS2
0
1
0
0
1
IOM
assignment
(Table 3)
IOM
assignment
(Table 3)
0
0
1
1
1)
®
®
-2 channel
-2 channel
TS1
0
0
0
1
1
0
1
0
0
1)
51
TS0
0
0
1
0
0
0
0
1
1
1)
DCL
IN
_
_
_
_
_
512-
4096
512-
4096
_
_
512
_
Output Pins U
Synchronized
DCL
OUT
(kHz)
512
512
512
1536
1536
_
_
512
1536
_
512
Functional Description
CLS
OUT
(kHz)
7680
7680
7680
7680
7680
512
not
defined
7680
7680
512
15360
3)
4)
Data Sheet 01.99
3)
3)
3)
3)
3)
4)
4)
4)
PEB 2091
PEF 2091
Super
frame
marker
no
yes
no
no
yes
_
_
no
no
_
yes
2)