pef22504 Infineon Technologies Corporation, pef22504 Datasheet - Page 89

• Manufacturer Part Number: pef22504
• Description: Quad E1/t1/j1 Line Interface Component For Long- And Short-haul Applications Pef 22504 E, Pef 22504 Ht, Version 2.1
• Manufacturer: Infineon Technologies Corporation

Table 18
Configuration
XLT, XLT
RTDMT
Receive system interface
RLM mode
Analog switch (always off)
300
Figure 27
3.7.3.5
Using the integrated analog switch of the QuadLIU
additional resistive network is necessary. Therefore, unlike in the redundancy application using RLM, long haul
redundancy applications are possible as there are no serial resistors in the receive path.
For these applications all of the hardware control functions described in
way. Additionally the hardware control function of the receive interface switches is used: By configuring one of the
Multi Function Ports in both of the two channels to RLT, the receive interfaces of these channels can be connected
on one receive line as shown in
If RLT is configured at the Multi Function Port RPB (proposed) by programming of the register bits PC2.RPC2(3:0)
the configuration for the redundancy mode application is listed in
The analog switch is connected at the resistor R
Data Sheet
switch (always off)
Configuration for Redundancy Application using RLM, switching with only one board signal
Redundancy Application using RLM (shown for one line)
General Redundancy Applications
E1/T1/J1
Transmit
E1/T1/J1
Receive
Line
Line
R
3
PC1.XPC1(3:0)
PC1.RPC1(3:0)
SIC3.RRTRI
LIM0.RLM
LIM2.MPAS
LIM0.RTRSS
Figure
Register Bits
28.
S
.
R
R
R
R
SER
SER
SER
SER
R
R
TM
E
E
89
general redundancy applications are possible were no
1000
1101
0
0
0
0
XL1
XL2
RL1
RL2
XL1
XL2
RL1
RL2
(active/stand-by)
(XPA)
(XPA)
SIC3.RRTRI = ´0´
XLT
SIC3.RRTRI = ´1´
XLT
Channel 1
active/stand-by
QLIU_receiver_redun_RLM
Table
active/stand-by
LIM0.RLM = ´0´
LIM0.RLM = ´1´
channel
channel
19.
Chapter 3.7.3.4
RTDMT
RTDMT
(RPA)
(RPA)
RSIG
RSIG
RDO
RDO
XDI
XDI
1110
1101
1
1
0
0
´low´/´high´
Functional Description
(stand-by/active)
are used in the same
Rev. 1.3, 2006-01-25
Channel 2
QuadLIU
PEF 22504
TM