peb2256 Infineon Technologies Corporation, peb2256 Datasheet - Page 72

• Manufacturer Part Number: peb2256
• Description: E1/t1/j1 Framer And Line Interface Component For Long And Short Haul Applications
• Manufacturer: Infineon Technologies Corporation

slip condition is detected, a negative slip (one frame or one half of the current buffer size
is skipped) or a positive slip (one frame or one half of the current buffer size is read out
twice) is performed at the system interface, depending on the difference between RCLK
and the current working clock of the receive backplane interface. I.e. on the position of
pointer R and W within the memory. A positive/negative slip is indicated in the interrupt
status bits ISR3.RSP and ISR3.RSN.
Figure 19
Data Sheet
The Receive Elastic Buffer as Circularly Organized Memory
S+, S-
W :
R
:
:
Frame 2 Time Slots
Write Pointer (Route Clock controlled)
Read Pointer (System Clock controlled)
Limits for Slip Detection (mode dependent)
R
S-
72
R’
W
S+
Slip
Frame 1 Time Slots
Moment of Slip Detection
Functional Description E1
ITD10952
FALC56 V1.2
PEB 2256
2002-08-27