PEB22554 SIEMENS [Siemens Semiconductor Group], PEB22554 Datasheet - Page 300

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

EXZE…
LOOP (Read/Write)
Value after RESET: 00
LOOP
RTM…
ECLB…
CLA4…CLA0… Channel Address For Loop Back
Semiconductor Group
7
Excessive Zeros Detection Enable
Selects error detection mode in the bipolar receive bit stream.
0…
1…
Receive Transparent Mode
Setting this bit disconnects control of the internal elastic store from the
receiver. The elastic store is now in a “free running” mode without any
possibility to actualize the time slot assignment to a new frame
position in case of re-synchronization of the receiver. This function
can be used in conjunction with the “disable AIS to system interface”
feature (FMR2.DAIS) to realize undisturbed transparent reception.
This bit should be enabled in case of unframed data reception mode.
Enable Channel Loop Back
0…
1…
CLA = 1…24 selects the channel.
During loop back, the contents of the associated outgoing channel at
ports XL1/XDOP/XOID and XL2/XDON is equal to the idle channel
code programmed in register IDLE.
RTM
H
Only bipolar violations are detected.
Bipolar violations and zero strings of 8 or more contiguous
state (FRS0.LFA bit is set). In synchronous state the remote
alarm bit will be reset.
zeros in B8ZS code or more than 15 contiguous zeros in AMI
code are detected additionally and counted in the code violation
counter CVC.
Disables the channel loop back.
Enables the channel loop back selected by this register.
ECLB
CLA4
300
Operational Description T1 / J1
0
CLA0
PEB 22554
(x1F)
09.98