peb2256 Infineon Technologies Corporation, peb2256 Datasheet - Page 353

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

SSC(1:0)
AUTO
FM(1:0)
Data Sheet
Select Sync Conditions
Loss of Frame Alignment (FRS0.LFA or opt. FRS0.LMFA) is declared
if:
00 = 2 out of 4 framing bits
01 = 2 out of 5 framing bits
10 = 2 out of 6 framing bits in F4/12/72 format
10 = 2 out of 6 framing bits per multiframe period in ESF format
11 = 4 consecutive multiframe pattern in ESF format
are incorrect. It depends on the selected multiframe format and
optionally on bit FMR2.SSP which framing bits are observed:
F4:
F12, F72:SSP = 0:
F12, F72:SSP = 1:
ESF: ESF framing bits → FRS0.LFA
Enable Auto Resynchronization
0 =
1 =
Select Frame Mode
FM = 0: 12-frame multiframe format (F12, D3/4)
FM = 1: 4-frame multiframe format (F4)
FM = 2: 24-frame multiframe format (ESF)
FM = 3: 72-frame multiframe format (F72, remote switch mode)
FT-bits → FRS0.LFA
FT-bits → FRS0.LFA
FS-bits → FRS0.LFA and FRS0.LMFA
FT → FRS0.LFA
FS → FRS0.LMFA
The receiver does not re synchronize automatically. Starting a
new synchronization procedure is possible by the bits
FMR0.EXLS or FMR0.FRS.
Auto-resynchronization is enabled.
353
T1/J1 Registers
FALC56 V1.2
PEB 2256
2002-08-27