pef20320 Infineon Technologies Corporation, pef20320 Datasheet - Page 224

• Manufacturer Part Number: pef20320
• Description: Multichannel Network Interface Controller For Hdlc With 32 Channels
• Manufacturer: Infineon Technologies Corporation

User’s Manual
6.3
The serial interface of the MUNICH32 is very general and comprises standard clock,
PCM frame synchronization and data signals, which are independent for both directions.
The following description explains typical applications integrating the MUNICH32 into
2.048 Mbps PCM systems, like SIEMENS System Interface for Primary Access and the
MITEL ST BUS. In these systems the receive and transmit clocks are identical. The
general timing is shown in Figure 113 (see also Chapter 2.1).
Figure 113
The RSP pulse is shifted by one clock period against the TSP pulse. The main task using
this timing for different PCM systems is to adapt the TSP and RSP pulses appropriately,
as described below.
6.3.1
The SIEMENS devices for the Primary Access Interface is the Frame and Line Interface
Component (FALC54). This device can directly be connected to the MUNICH32 without
any additional glue logic. In combination with the MUNICH32 this application is the most
effective way to build a powerful and flexible Primary Access Interface, especially
supporting different combined B channel paths over long distances (LAN-WAN
Internetworking). The following block diagram illustrates how easy it is to integrate the
MUNICH32 into a Primary Access application based on SIEMENS devices.
Serial Interface to different PCM Systems
MUNICH32 for SIEMENS Primary Access Interface
RCLK=TCLK
TSP
TDATA
RSP
RDATA
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Time-Slot 0
Time-Slot 0
Application Hints
ITD04694
PEB 20320
01.2000