peb20560 Infineon Technologies Corporation, peb20560 Datasheet - Page 358

• Manufacturer Part Number: peb20560
• Description: Dsp Oriented Pbx Controller Doc
• Manufacturer: Infineon Technologies Corporation

Semiconductor Group
3. The system master synchronizes its master clocks PFS and PDC2/4/8 to the
4. All other DOCs “resynchronize” FSC and DCL (shift by a delta) to the system master.
The DOC hardware will be optimized so that the phase shift will be minimal and constant
for all DOCs.
6.4
The four independent communication channels of the SIDEC can be used either for data
communication with terminals (or PCs) or in connection with QUAT-S for communication
to the central office.
If the QUAT-S is used for LT-T applications, the SIDEC must be assigned with all
involved channels to one IOM-2 interface. See Figure 6-7.
The pin DRDY conveys control information synchronously to the D-channel time-slots to
control the SIDEC. Refer also to Figure 2-22 and Figure 2-23.
Figure 6-7
The clock master is selected by the µP via the integrated Local Network Controller
(LNC).
REFCLK.
Signaling with SIDEC
T-Interfaces
0
3
QUAT-S in LT-T Mode with SIDEC for Four-Channel Trunk
Applications
"0" = Stop
"1" = Go
QUAT
PEB 2084
DRDY
R
-S
DRDY
6-8
DOC
IOM -2
SIDEC
R
ELIC
µ
P
ITS10114
Applications
PEB 20560
2003-08