PEB2256E INFINEON [Infineon Technologies AG], PEB2256E Datasheet - Page 245

• Manufacturer Part Number: PEB2256E
• Description: E1/T1/J1 Framer and Line Interface Component for Long and Short Haul Applications
• Manufacturer: INFINEON [Infineon Technologies AG]

Framer Mode Register 3 (Read/Write)
Value after reset: 00
FMR3
XLD
XLU
CMI
SA6SY
Data Sheet
7
Transmit LLB Down Code
0 =
1 =
Transmit LLB UP Code
0 =
1 =
Select CMI Precoding
Only valid if CMI code (FMR0.XC(1:0) = 01) is selected. This bit
defines the CMI precoding and influences transmit and receive data.
0 =
1 =
Note: Before local loop is selected, HDB3 precoding has to be
Receive S
Only valid if multiframe format (FMR2.RFS(1:0) = 1x) is selected.
0 =
1 =
H
Normal operation.
A one in this bit position causes the transmitter to replace
normal transmit data with the LLB down (deactivate) Code
continuously until this bit is reset. The LLB down Code is
optionally overwritten by the time slot 0 depending on bit
LCR1.FLLB.
Normal operation.
A one in this bit position causes the transmitter to replace
normal transmit data with the LLB UP Code continuously until
this bit is reset. The LLB UP Code is overwritten by the time slot
0 depending on bit LCR1.FLLB. For proper operation bit
FMR3.XLD must be cleared.
disabled.
CMI with HDB3 precoding
CMI without HDB3 precoding
The detection of the predefined S
S
independently of the multiframe synchronous state.
The detection of the S
the multiframe.
a
6-bit detection according to ETS 300233) is done
XLD
a
6-Access Synchronous Mode
XLU
245
CMI
a
6-bit pattern is done synchronously to
SA6SY
a
6-bit pattern (refer to chapter
EXTIW
FALC56 V1.2
E1 Registers
0
PEB 2256
2002-08-27
(31)