PEF2256 INFINEON [Infineon Technologies AG], PEF2256 Datasheet - Page 369

• Manufacturer Part Number: PEF2256
• Description: E1/T1/J1 Framer and Line Interface Component for Long- and Short-Haul Applications
• Manufacturer: INFINEON [Infineon Technologies AG]

SSC(1:0)
AUTO
FM(1:0)
User’s Manual
Hardware Description
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
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
FS-bits
FT
FS
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.
FT-bits
FRS0.LFA
FRS0.LMFA
FRS0.LFA
FRS0.LFA
FRS0.LFA and FRS0.LMFA
369
FRS0.LFA
DS1.1, 2003-10-23
T1/J1 Registers
PEF 2256 H/E
FALC
®
56