PEF2054 SIEMENS [Siemens Semiconductor Group], PEF2054 Datasheet - Page 110

• Manufacturer Part Number: PEF2054
• Description: ICs for Communications
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

CFI Framing Signal Output Control CMD2:FC2 … 0
This feature applies only if the configurable interface is clocked and synchronized via the
PCM interface clock and framing signals (PDC, PFS), i.e. if CMD1:CSS = 0.
In this case the EPIC delivers an output framing signal at pin FSC with a programmable
pulse width and position.
Note that the up- and downstream CFI frame position relative to the FSC output is not
affected by the setting of the CTAR and CBSR:CDS2 … 0 register bits.
Table 17 summarizes the 7 possible FSC Control (FC) modes:
Table 17
FC2
0
0
0
0
1
1
1
1
Semiconductor Group
FC1
0
0
1
1
0
0
1
1
FC0 FC
0
1
0
1
0
1
0
1
Mode
0
1
2
3
4
5
6
7
Main Applications
IOM-1 multiplexed (burst) mode
General purpose
General purpose
General purpose
Special SLD application
reserved
IOM-2, IOM-1 or SLD modes
Software timed multiplexed
IOM-2 applications
110
Notes
SBC, IBC, IEC-T
2 ISAC-S per SLD port
Standard IOM-2 setting;
no Superframes
generated
Standard IOM-2 setting;
Superframes generated
Application Hints
PEB 2055
PEF 2055