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