peb2255 Infineon Technologies Corporation, peb2255 Datasheet - Page 110

• Manufacturer Part Number: peb2255
• Description: E1/t1/j1 Framer And Line Interface Component For Long And Short Haul Applications
• Manufacturer: Infineon Technologies Corporation

Figure 35
Note: DR = Dual Rail Interface; DCO-X = Digital Controlled Oscillator Transmit
5.1.10
The following functions are performed:
• Synchronization on pulse frame and multiframe
• Error indication when synchronization is lost. In this case, AIS is sent to the system
• Initiating and controlling of resynchronization after reaching the asynchronous state.
• Detection of remote alarm (yellow alarm) indication from the incoming data stream.
• Separation of service bits and data link bits. This information is stored in special status
• Detection of framed or unframed In Band Loop Up/Down Code
• Generation of various maskable interrupt statuses of the receiver functions.
Data Sheet
XCLK
side automatically and Remote Alarm to the remote end if en/disabled.
This can be done automatically by the FALC
microprocessor interface.
registers.
Framer/Synchronizer (T1/J1)
Transmit Clock System (T1/J1)
D
Shaper
A
Pulse
6 MHz
DCO-X
12.352 MHz
1.5 MHz
XTAL3
Osc.
Framer
PD
110
®
-LH or user controlled via the
Conv.
Rate
Functional Description T1/J1
Elastic
Store
FALC-LH V1.3
PEB 2255
XDI
SYNC2
SCLKX
RCLK
2000-07
F0049