peb3456 Infineon Technologies Corporation, peb3456 Datasheet - Page 58

• Manufacturer Part Number: peb3456
• Description: Channelized T3 Termination With Ds3 Framer, M13 Multiplexer, T1/ E1 Framers And 256 Channel Hdlc/ppp Controller
• Manufacturer: Infineon Technologies Corporation

•
Figure 4-5
4.2.2
In unchannelized mode the complete incoming and outgoing serial bit stream belongs to
one logical DS3 channel. To operate the link in unchannelized mode tributary zero (port
zero) has to be programmed for unchannelized operation and all ‘time slots’, that is time
slot 0 to 23 must be assigned to one channel. Additionally the M13 multiplexer must be
switched into unchannelized DS3 mode. The function of bit masks, which is available for
the T1/E1 tributaries, is not available in unchannelized mode.
Data Sheet
Example configuration:
Port three in mode E1.
Timeslot 2 and 3 are assigned to channel 5.
Bit 0 of timeslot 2 and bit 1 of timeslot 3 are masked.
Programming sequence:
1. Port mode configuration
2. Timeslot assignment
6
0
7
Unchannelized Mode
Register
PMIAR
PMR
TSAIA
TSAD
TSAIA
TSAD
1
Time slot Assignment in Channelized Modes
0
0
2
1
1
3
Timeslot Mask
31
2
1
Data
Timeslot 2
8
Frame 1
H
3
1
4
1
5
1
6
1
29
7
1
30
Time
0
1
31
5
5
H
H
58
3
3
1
0
0
H
H
Timeslot Mask
1 1
1 1
2
1
1
Timeslot 3
1
1
2
1
1
3
1
1
1
3
2
3
1
1
H
H
H
3
4
1
1
0
0
0
1
Frame 2
5
1
6
1
Select port 3
E1 mode
Select port 3, timeslot 2
Set channel 5, mask
Select port 3, timeslot 3
Set channel 5, mask
Functional Description
7
1
0
29
1
30
31
PEB 3456 E
05.2001