IDT82P2282 Integrated Device Technology, Inc., IDT82P2282 Datasheet - Page 236

• Manufacturer Part Number: IDT82P2282
• Description: 2 Channel T1/J1/E1 Transceiver
• Manufacturer: Integrated Device Technology, Inc.

IDT82P2282
TPLC:
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
SUBST[2:0]
Bit Name
Default
Bit No.
Type
The indirect registers of TPLC addressed from 01H to 18H are the Channel Control Registers for CH1 to CH24. Each address corresponds to
The indirect registers of TPLC addressed from 21H to 38H are the Data Trunk Conditioning Code Registers for CH1 to CH24. Each address cor-
The indirect registers of TPLC 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/J1-0CBH,...) 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.
others
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
SINV
0
0
0
0
1
1
1
1
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.
The data of the corresponding channel is replaced by the payload loopback code extracted from the Elastic Store Buffer in the receive path.
Reserved.
SUBST2
R/W
7
0
OINV
0
0
1
1
0
0
1
1
EINV
0
1
0
1
0
1
0
1
SUBST1
R/W
6
0
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).
SUBST0
R/W
5
0
SINV
R/W
Replacement Selection
4
0
225
DUAL 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
October 7, 2003
GAP
R/W
0
0