82P2281PFG8 IDT, Integrated Device Technology Inc, 82P2281PFG8 Datasheet - Page 227
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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RPLC:
one channel.
responds to one channel.
corresponds to one channel.
T1/J1 Channel Control Register (01H ~ 18H)
SUBST[2:0]:
SINV, OINV, EINV:
Programming Information
IDT82P2281
SUBST[2:0]
Bit Name
the others
Default
Bit No.
Type
The indirect registers of RPLC addressed from 01H to 18H are the Channel Control Registers for CH1 to CH24. Each address corresponds to
The indirect registers of RPLC addressed from 21H to 38H are the Data Trunk Conditioning Code Registers for CH1 to CH24. Each address cor-
The indirect registers of RPLC addressed from 41H to 58H are the Signaling Trunk Conditioning Code Registers for CH1 to CH24. Each address
When the GSUBST[2:0] bits (b2~0, T1/J1-0D0H) are ‘000’, these bits select the replacement on a per-channel basis.
These three bits select how to invert the bits in the corresponding channel.
000
001
010
011
SINV
No operation.
The data of the corresponding channel is replaced by the data trunk code set in the DTRK[7:0] bits (b7~0, T1/J1-ID-21~38H).
The data of the corresponding channel is replaced by the A-Law digital milliwatt pattern.
The data of the corresponding channel is replaced by the µ-Law digital milliwatt pattern.
Reserved.
0
0
0
0
1
1
1
1
SUBST2
R/W
7
0
OINV EINV
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
SUBST1
R/W
No inversion.
Invert the even bits (bit 2, 4, 6, 8) of the corresponding channel (bit 1 is the MSB).
Invert the odd bits (bit 3, 5, 7) except the MSB of the corresponding channel (bit 1 is the MSB).
Invert the bits from bit 2 to bit 8 of the corresponding channel (bit 1 is the MSB).
Invert the MSB (bit 1) of the corresponding channel.
Invert the MSB (bit 1) and the even bits (bit 2, 4, 6, 8) of the corresponding channel.
Invert all the odd bits (bit 1, 3, 5, 7) of the corresponding channel (bit 1 is the MSB).
Invert all the bits (bit 1 ~ bit 8) of the corresponding channel (bit 1 is the MSB).
6
0
SUBST0
R/W
5
0
SINV
R/W
Replacement Selection
4
0
227
SINGLE T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
Bit Inversion
OINV
R/W
3
0
EINV
R/W
2
0
G56K
R/W
1
0
August 20, 2009
GAP
R/W
0
0
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