IDT82P2288 Integrated Device Technology, Inc., IDT82P2288 Datasheet - Page 278

• Manufacturer Part Number: IDT82P2288
• Description: 8 Channel T1/J1/E1 Transceiver
• Manufacturer: Integrated Device Technology, Inc.

IDT82P2288
E1 FRMR Mode 1 (04EH, 14EH, 24EH, 34EH, 44EH, 54EH, 64EH, 74EH)
BIT2C:
CASEN:
CRCEN:
CNTNFAS & WORDERR:
TS16C & SMFASC:
C2NCIWCK:
Programming Information
Bit Name
Default
Bit No.
Type
This bit determines the criteria of out of Basic frame synchronization.
= 0: 3 consecutive FAS pattern errors lead to out of Basic frame synchronization.
= 1: 3 consecutive FAS pattern errors or 3 consecutive NFAS errors lead to out of Basic frame synchronization.
= 0: Disable searching for the Channel Associated Signaling (CAS) Multi-Frame.
= 1: Enable searching for the Channel Associated Signaling (CAS) Multi-Frame after the Basic frame synchronization is acquired.
= 0: Disable searching for the CRC Multi-Frame.
= 1: Enable searching for the CRC Multi-Frame after the Basic frame synchronization is acquired.
These two bits determine the criteria of FAS/NFAS Bit/Pattern Error generation:
These two bits determine the criteria of out of CAS Signaling Multi-Frame synchronization:
= 0: Stop searching for CRC Multi-Frame alignment pattern in CRC to non-CRC interworking mode.
= 1: Enable searching for CRC Multi-Frame alignment pattern even if CRC to non-CRC interworking has been declared.
TS16C
X
0
1
BIT2C
R/W
7
1
SMFASC
WORDERR
0
1
1
0
1
0
1
CASEN
2 consecutive CAS Signaling Multi-Frame Alignment Pattern Errors occur.
2 consecutive CAS Signaling Multi-Frame Alignment Pattern Errors occur or all the contents in TS16 are zeros for one
Signaling Multi-Frame.
2 consecutive CAS Signaling Multi-Frame Alignment Pattern Errors occur or all the contents in TS16 are zeros for two
consecutive Signaling Multi-Frames.
R/W
6
1
CNTNFAS
0
0
1
1
CRCEN
R/W
5
1
Each bit error in FAS is counted as an error event.
A FAS pattern error is counted as an error event.
Each bit error in FAS or NFAS error is counted as an error event.
A FAS pattern error or NFAS error is counted as an error event.
Out Of CAS Signaling Multi-Frame Synchronization Criteria
CNTNFAS
R/W
4
0
267
OCTAL T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
WORDERR
Error Generation
R/W
3
0
TS16C
R/W
2
0
SMFASC
R/W
1
0
March 22, 2004
C2NCIWCK
R/W
0
0