PEB22554 SIEMENS [Siemens Semiconductor Group], PEB22554 Datasheet - Page 116

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

Channel Loop Back (Read/Write)
Value after RESET: 00
LOOP
ECLB…
CLA4…CLA0… Channel Address For Loop Back
Transmit Service Word Pulseframe (Read/Write)
Value after RESET: 00
XSW
XSIS…
XTM…
Semiconductor Group
7
7
XSIS
Enable Channel Loop Back
0 ... Disables the channel loop back.
1 ... Enables the channel loop back selected by this register.
CLA = 0…31 selects the channel.
During looped back the contents of the assigned outgoing channel on
ports XL1/XDOP/XOID and XL2/XDON is equal to the idle channel
code programmed at register IDLE.
Spare Bit For International Use
First bit of the service word. Only significant in doubleframe format. If
not used, this bit should be fixed to ‘1’. If one of the time-slot 0
transparent modes is enabled (bit XSP.TT0, or TSWM.TSIS), bit
XSW.XSIS will be ignored.
Transmit Transparent Mode
0…Ports SYPX / XMFS define the frame / multiframe begin on the
transmit system highway. The transmitter is usually synchronized on
this externally sourced frame boundary and generates the FAS bits
according to this framing. Any change of the transmit time-slot
assignment will subsequently produce a change of the FAS bit
positions.
1… Disconnects the control of the transmit system interface from the
transmitter. The transmitter is now in a free running mode without any
possibility to actualize the multiframe position. The framing (FAS bits)
generated by the transmitter will not be „disturbed“ (in case of
XTM
H
H
ECLB
XRA
CLA4
XY0
116
XY1
XY2
Operational Description E1
XY3
0
0
CLA0
XY4
PEB 22554
(x1F)
(x20)
09.98