PEB22554 SIEMENS [Siemens Semiconductor Group], PEB22554 Datasheet - Page 118

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

EBP…
AXS…
XSIF…
XS13…
Semiconductor Group
Automatic Transmission of Submultiframe Status
E- Bit Polarity
0…
1…
If automatic transmission of sub-multiframe status is enabled by
setting bit XSP.AXS and the receiver has been lost multiframe
synchronization, the E bit with the programmed polarity will be
inserted automatically in S
multiframe (under the condition that time-slot 0 transparent mode and
transparent Si bit in Service word are both disabled).
Only applicable to CRC multiframe.
0…
1…
Transmit Spare Bit For International Use (FAS Word)
First bit in the FAS 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 (bits XSP.TT0, or TSWM.TSIF), bit XSP.XSIF will
be ignored.
Transmit Spare Bit (Frame 13, CRC-Multiframe)
First bit in the service word of frame 13 for international use. Only
significant in CRC-multiframe format. If not used, this bit should be
fixed to ‘1’. The information of XSP.XS13 will be shifted into internal
transmission buffer with beginning of the next following transmitted
CRC multiframe.
If automatic transmission of submultiframe status is enabled via bit
XSP.AXS, or, if one of the time-slot 0 transparent modes XSP.TT0 or
TSWM.TSIS is enabled, bit XSP.XS13 will be ignored.
In the basic - or multiframe asynchronous state the E-bit will be
In the basic - or multiframe asynchronous state the E-bit will be
Normal operation.
Information of submultiframe status bits RSP.SI1 and RSP.SI2
set to zero.
set to one.
will be automatically inserted in S
CRC multiframe (RSP.SI1
S
be ignored. If one of the time-slot 0 transparent modes
XSP.TT0 or TSWM.TSIS is enabled, bit XSP.AXS has no
function.
i
-bit of frame 15). Contents of XSP.XS13 and XSP.XS15 will
118
i
-bit position of every outgoing CRC
S
i
i
-bit of frame 13; RSP.SI2
Operational Description E1
-bit positions of the outgoing
PEB 22554
09.98