82P2281PFG8 IDT, Integrated Device Technology Inc, 82P2281PFG8 Datasheet - Page 273
82P2281PFG8
Manufacturer Part Number
82P2281PFG8
Description
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet
1.82P2281PFG8.pdf
(371 pages)
Specifications of 82P2281PFG8
Number Of Transceivers
1
Screening Level
Industrial
Mounting
Surface Mount
Package Type
TQFP
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Lead Free Status / RoHS Status
Compliant
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E1 FRMR Interrupt Indication 1 (053H)
ISMFPI:
ICSMFPI:
SMFERI:
When one or more bits do not match, a single CAS Signaling Multi-Frame alignment pattern error event is generated. During out of CAS Signaling
Multi-Frame synchronization state, the CAS Signaling Multi-Frame Alignment Pattern Error detection is suspended.
ICMFPI:
CMFERI:
or more bits do not match, a single CRC Multi-Frame alignment pattern error event is generated. During out of CRC Multi-Frame synchronization
state, the CRC Multi-Frame Alignment Pattern Error detection is suspended.
CRCEI:
received CRC-4 of the next received CRC Sub Multi-Frame, a single CRC-4 error event is generated. During out of CRC Multi-Frame synchronization
state, the CRC-4 Error detection is suspended.
Programming Information
IDT82P2281
Bit Name
Default
Bit No.
Type
= 0: The received bit is not the first bit of each CAS Signaling Multi-Frame.
= 1: The first bit of each CAS Signaling Multi-Frame is received.
This bit will be cleared if a ’1’ is written to it. It can not be updated during out of CAS Signaling Multi-Frame synchronization state
= 0: The received bit is not the first bit of each CRC Sub Multi-Frame.
= 1: The first bit of each CRC Sub Multi-Frame is received.
This bit will be cleared if a ’1’ is written to it. It can not be updated during out of CRC Multi-Frame synchronization state.
When Signaling Multi-Frame is synchronized, the received Signaling Multi-Frame alignment signals are compared with the expected one (‘0000’).
= 0: No CAS Signaling Multi-Frame Alignment Pattern Error event is detected.
= 1: The CAS Signaling Multi-Frame Alignment Pattern Error event is detected.
This bit will be cleared if a ’1’ is written to it.
= 0: The received bit is not the first bit of each CRC Multi-Frame.
= 1: The first bit of each CRC Multi-Frame is received.
This bit will be cleared if a ’1’ is written to it. It can not be updated during out of CRC Multi-Frame synchronization state.
When CRC Multi-Frame is synchronized, the received CRC Multi-Frame alignment signals are compared with the expected one (‘001011’). If one
= 0: No CRC Multi-Frame Alignment Pattern Error event is detected.
= 1: The CRC Multi-Frame Alignment Pattern Error event is detected.
This bit will be cleared if a ’1’ is written to it.
When CRC Multi-Frame is synchronized and the local calculated CRC-4 of the current received CRC Sub Multi-Frame does not match the
= 0: No CRC-4 Error event is detected.
= 1: The CRC-4 Error event is detected.
This bit will be cleared if a ’1’ is written to it.
ISMFPI
R
7
0
ICSMFPI
R
6
0
SMFERI
R
5
0
ICMFPI
R
4
0
273
SINGLE T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
CMFERI
R
3
0
CRCEI
R
2
0
FERI
R
1
0
August 20, 2009
COFAI
R
0
0
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