PEB22554 SIEMENS [Siemens Semiconductor Group], PEB22554 Datasheet - Page 126

• Manufacturer Part Number: PEB22554
• Description: ICs for Communications
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Framer Mode Register 3 (Read/Write)
Value after RESET: 00
FMR3
XLD…
XLU…
CMI…
SA6SY…
Semiconductor Group
7
multiframe begin interrupt XMB request that these registers should be
serviced. If requests for new information are ignored, current contents
will be repeated.
Transmit LLB Down Code
0…
1…
Transmit LLB UP Code
0…
1…
Select CMI Precoding
Only valid if CMI code (FMR0.XC1/0=01) is selected. This bit defines
the CMI precoding and influences only the transmit data and not the
receive data.
0…
1…
Receive SA6 Access Synchron Mode
Only valid if multiframe format (FMR2.RFS1/0=1x) is selected.
0…
H
CMI with HDB3 precoding
The detection of the predefined SA6 bit pattern (refer to chapter
Normal operation.
A one in this bit position will cause the transmitter to replace
normal transmit data with the LLB Down (Deactuate) Code
continuously until this bit is reset. The LLB Down Code will be
optionally overwritten by the timeslot 0 depending on bit
LCR1.LLBF.
Normal operation.
A one in this bit position will cause the transmitter to replace
normal transmit data with the LLB UP Code continuously until
this bit is reset. The LLB UP Code will be overwritten by the
timeslot 0 depending on bit LCR1.LLBF. For proper operation
bit FMR3.XLD must be cleared.
CMI without HDB3 precoding
SA6 Bit Detection according to ETS 300233) is done
independently of the multiframe synchronous state.
XLD
XLU
126
CMI
SA6SY
Operational Description E1
0
EXTIW
PEB 22554
(x31)
09.98