PEB2085 SIEMENS [Siemens Semiconductor Group], PEB2085 Datasheet - Page 33

• Manufacturer Part Number: PEB2085
• Description: ISDN SubscribernAccess Controller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Table 1
Operating Modes and Functions of Mode Specific Pins of the ISAC
the IOM
Pin No.
P-DIP-40
(PEB 2085
only)
Pin No.
P-LCC-44
Pin No.
P-MQFP-64
(PEB 2086
only)
Application
TE
LT-T
LT-S
NT
*) synchronized to the S/T interface
**) PEB 2086 only
ECHO/M The value of the M-bit is output, multiplexed with the value of the Echo-bits on the
SFS
SSYNC
SCZ
SSZ
Semiconductor Group
®
-1 Mode
IOM-interface.
Reproduces the E-bits received from the S interface synchronously to IOM frame
"D"-bits (bit positions 24 and 25 of the IOM frame). All other bit positions, except the
M-bit are binary "1".
S-Frame Start. A 4 kHz synchronization signal is used to sample the value of the M-
bit and to synchronize the start of the S-frame. Note that the M-bit functions are only
available on the PEB 2086.
Superframe/Multiframe Synchronization. This input is used to reset the multiframe
counter. It is sampled by SFS.
Send continuous binary zeros (96 kHz)
Send single binary zeros (2 kHz)
1 0
14 18
15 21
61 6
M1 M0
0 0
0 1
1 1
11
12
58
DCL
o:512 kHz*
i:512 kHz
i:512 kHz
i:512 kHz
12
13
59
FSC1
o:8 kHz*
i:8 kHz
i:8 kHz
i:8 kHz
13
14
60
FSC2
o:8 kHz*
i:8 kHz
i:8 kHz
i:8 kHz
i:input
33
19
22
7
CP
o:1536 kHz*
i:o/i:SFS**
i:SCZ/
i:4 kHz**
o:512 kHz*
o:output
i:o/i:SSYNC
15
16
62
X2
o:ECHO/M**
i:o
i:SSZ
Functional Description
i:o : input to be fixed at "0"
®
-S PEB 2085/86 in
o:7680 kHz
17
20
5
X1
o:3840 kHz
i:o
i:o
16
19
–
X0
i:CON
i:o
–
i:CON