PEF 22508 E V1.1-G Infineon Technologies, PEF 22508 E V1.1-G Datasheet - Page 94

• Manufacturer Part Number: PEF 22508 E V1.1-G
• Description: IC INTERFACE E1/T1/J1 LBGA-256
• Manufacturer: Infineon Technologies
• Series: OctalLIU™r

Specifications of PEF 22508 E V1.1-G

• Function: Line Interface Unit (LIU)
• Interface: E1, J1, T1
• Number Of Circuits: 8
• Voltage - Supply: 1.8V, 3.3V
• Current - Supply: 370mA
• Power (watts): 140mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 256-LSBGA
• Includes: Automatic Protection Switching, Clock Generation, Power-Down, Transmit Line Monitor, Tristate Function
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: PEF22508EV1.1T; PEF22508EV11GXP; SP000029953

Field
ALM
SIM
Data Sheet
Bits
2
0
Type
rw
rw
Description
Alarm Mode, E1 only
Selects the AIS alarm detection mode in E1 mode. In T1/J1 mode this bit
is reserved.
0
1
Alarm Simulation, in E1 mode
SIM has to be held stable at high or low level for at least one receive clock
period before changing it again.
0
1
Alarm Simulation, in T1/J1 mode
Setting/resetting of SIM initiates internal error simulation of AIS (blue
alarm), loss-of-signal (red alarm) and code violations. The error counter
CVC is incremented.The selection of simulated alarms is done by the
error simulation counter: LSR2.ESC(2:0) which is incremented with each
setting of bit SIM. For complete checking of the alarm indications eight
simulation steps are necessary (LSR2.ESC(2:0) = ´0´ after a complete
simulation).
SIM has to be held stable at high or low level for at least one receive clock
period before changing it again.
B
B
B
B
, The AIS alarm is detected according to ETS300233. Detection: An
AIS alarm is detected if the incoming data stream contains less than
3 zeros within a period of 512 bits and a loss of frame alignment is
indicated. Recovery: The alarm is cleared if 3 or more zeros within
512 bits are detected or the FAS word is found.
, The AIS alarm is detected according to ITU-T G.775 Detection: An
AIS alarm is detected if the incoming data stream contains less than
3 zeros in each doubleframe period of two consecutive
doubleframe periods (1024 bits). Recovery: The alarm is cleared if
3 or more zeros are detected within two consecutive doubleframe
periods.
, Normal operation.
, Initiates internal error simulation of AIS, loss-of-signal and code
violations.
94
Register DescriptionMode Register 0
Rev. 1.0, 2005-06-02
PEF 22508 E
OctalLIU
TM