IDT82V2108PXG IDT, Integrated Device Technology Inc, IDT82V2108PXG Datasheet - Page 170

• Manufacturer Part Number: IDT82V2108PXG
• Description: IC FRAMER T1/J1/E1 8CH 128-PQFP
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT82V2108PXG

• Controller Type: T1/E1/J1 Framer
• Interface: Parallel
• Voltage - Supply: 2.97 V ~ 3.63 V
• Current - Supply: 160mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP
• Screening Level: Industrial
• Mounting: Surface Mount
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 82V2108PXG

IDT82V2108
E1 FRMP Frame Alignment Options (030H, 0B0H, 130H, 1B0H, 230H, 2B0H, 330H, 3B0H)
CRCEN:
CASDIS:
C2NCIWCK:
REFR:
REFCRCE:
defined as more than 914 CRC errors in one second. One CRC error is counted when the local calculated CRC-4 is not equal to the received CRC-4.
REFRDIS:
tial Basic Frame synchronization is acquired.
frame to detect AIS.
Programming Information
Bit Name
Default
Bit No.
Type
= 0: Disable searching for CRC Multi-Frame.
= 1: Enable searching for CRC Multi-Frame alignment signal and monitor the errors in the CRC Multi-Frame.
= 0: Enable searching for Channel Associated Signaling (CAS) Multi-Frame alignment signal and monitor the errors in the Signaling Multi-Frame.
= 1: Disable searching for Channel Associated Signaling Multi-Frame.
= 0: Stop searching for CRC Multi-Frame alignment signal in CRC to non-CRC inter-working mode.
= 1: Continue searching for CRC Multi-Frame alignment signal even if CRC to non-CRC inter-working has been declared.
A transition from logic 0 to logic 1 forces to re-search for a new Basic Frame.
This bit decides if the Frame Processor re-searches for the Basic Frame when there are excessive CRC errors. The excessive CRC errors are
= 0: Disable re-searching for Basic Frame when there are excessive CRC errors.
= 1: Enable re-searching for Basic Frame when there are excessive CRC errors.
0 = Enable re-searching for Basic Frame when it is out of Basic frame synchronization or there are excessive CRC errors.
1 = ‘Locked in frame’ once initial frame alignment has been found. Disable re-searching for Basic Frame under any error conditions once the ini-
While the FRMP remains locked in frame due to REFRDIS = 1, a received AIS will not be detected since the Frame Processor must be out-of-
CRCEN
R/W
7
1
CASDIS
R/W
6
0
C2NCIWCK
R/W
5
0
4
160
Reserved
3
REFR
R/W
2
0
T1 / E1 / J1 OCTAL FRAMER
REFCRCE
R/W
1
1
March 5, 2009
REFRDIS
R/W
0
0