82P2281PFG8 IDT, Integrated Device Technology Inc, 82P2281PFG8 Datasheet - Page 205
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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T1/J1 Yellow Declare Threshold (0BEH)
YELDTH[7:0]:
window and this status persists for Nx40ms; in T1 ESF format, the Yellow alarm is declared when more than 7 ‘0xFF00’ (MSB first) are detected on the
sliding DL bits during a 40ms fixed window and this status persists for Nx40ms; in T1 DM format, the Yellow alarm is declared when less than 77
’One’s are detected on the Y bit (Bit 6 in each CH 24) during a 40ms fixed window and this status persists for Nx40ms; in J1 SF format, the Yellow
alarm is declared when less than 4 ’One’s are detected on the F-bit of the 12nd frame during a 40ms fixed window and this status persists for Nx40ms;
in J1 ESF format, the Yellow alarm is declared when less than 3 zeros are detected on the DL bits during a 40ms fixed window and this status persists
for Nx40ms. The value of the ‘N’ are all decided by these bits.
T1/J1 Yellow Clear Threshold (0BFH)
YELCTH[7:0]:
window and this status persists for Mx40ms; in T1 ESF format, the Yellow alarm is cleared when less than 8 ‘0xFF00’ (MSB first) are detected on the
sliding DL bits during a 40ms fixed window and this status persists for Mx40ms; in T1 DM format, the Yellow alarm is cleared when more than 76
’One’s are detected on the Y bit (Bit 6 in each CH 24) during a 40ms fixed window and this status persists for Mx40ms; in J1 SF format, the Yellow
alarm is cleared when more than 3 ’One’s are detected on the F-bit of the 12nd frame during a 40ms fixed window and this status persists for Mx40ms;
in J1 ESF format, the Yellow alarm is cleared when more than 2 zeros are detected on the DL bits during a 40ms fixed window and this status persists
for Mx40ms. The value of the ‘M’ are all decided by these bits.
Programming Information
IDT82P2281
Bit Name
Bit Name
Default
Default
Bit No.
Bit No.
Type
Type
In T1 SF/SLC-96 format, the Yellow alarm is declared when less than 77 ’One’s are detected on the Bit 2 of each channel during a 40ms fixed
In T1 SF/SLC-96 format, the Yellow alarm is cleared when more than 76 ’One’s are detected on the Bit 2 of each channel during a 40ms fixed
YELDTH7
YELCTH7
R/W
R/W
7
0
7
0
YELDTH6
YELCTH6
R/W
R/W
6
0
6
0
YELDTH5
YELCTH5
R/W
R/W
5
0
5
0
YELDTH4
YELCTH4
R/W
R/W
4
0
4
0
205
SINGLE T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
YELDTH3
YELCTH3
R/W
R/W
3
1
3
1
YELDTH2
YELCTH2
R/W
R/W
2
0
2
0
YELDTH1
YELCTH1
R/W
R/W
1
1
1
1
August 20, 2009
YELDTH0
YELCTH0
R/W
R/W
0
0
0
0
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