IDT82V2082 Integrated Device Technology, Inc., IDT82V2082 Datasheet - Page 43

• Manufacturer Part Number: IDT82V2082
• Description: 2Ch T1/J1/E1 Short Haul/long Haul Liu
• Manufacturer: Integrated Device Technology, Inc.

DUAL CHANNEL T1/E1/J1 LONG HAUL/SHORT HAUL LINE INTERFACE UNIT
Table-33 TCF2: Transmitter Configuration Register 2
Table-34 TCF3: Transmitter Configuration Register 3
Table-35 TCF4: Transmitter Configuration Register 4
SAMP[3:0]
WDAT[6:0]
SCAL[5:0]
Symbol
Symbol
Symbol
UI[1:0]
DONE
RW
-
-
(R/W, Address = 06H, 26H)
(R/W, Address = 07H, 27H)
(R/W, Address = 08H, 28H)
7-6
5-0
5-4
3-0
6-0
Bit
Bit
Bit
7
6
7
0000000
Default
Default
Default
100001
0000
00
00
0
0
0
These bits specify the sample address. Each UI has totally 16 samples.
Reserved.
SCAL specifies a scaling factor to be applied to the amplitude of the user-programmable arbitrary pulses which is
to be transmitted if needed. The default value of SCAL[5:0] is ‘100001’. Refer to
trary
= 110110: Default value for T1 0~133 ft, T1 133~266 ft, T1 266~399 ft, T1 399~533 ft, T1 533~655 ft, J1 0~655 ft,
DS1 0 dB LBO. One step change of this value results in 2% scaling up/down against the pulse amplitude.
= 010001: Default value for DS1 -7.5 dB LBO. One step change of this value results in 6.25% scaling up/down
against the pulse amplitude.
= 001000: Default value for DS1 -15.0 dB LBO. One step change of this value results in 12.5% scaling up/down
against the pulse amplitude.
= 000100: Default value for DS1 -22.5 dB LBO. One step change of this value results in 25% scaling up/down
against the pulse amplitude.
= 100001: Default value for E1 75 Ω and 120 Ω . One step change of this value results in 3% scaling up/down
against the pulse amplitude.
After ‘1’ is written to this bit, a read or write operation is implemented.
This bit selects read or write operation
= 0: Write to RAM
= 1: Read from RAM
These bits specify the unit interval address. There are totally 4 unit intervals.
= 00: UI address is 0 (The most left UI)
= 01: UI address is 1
= 10: UI address is 2
= 11: UI address is 3
= 0000: Sample address is 0 (The most left sample)
= 0001: Sample address is 1
= 0010: Sample address is 2
……
= 1110: Sample address is 14
= 1111: Sample address is 15
Reserved
In Indirect Write operation, the WDAT[6:0] will be loaded to the pulse template RAM, specifying the amplitude of
the Sample.
After an Indirect Read operation, the amplitude data of the Sample in the pulse template RAM will be output to the
WDAT[6:0].
Waveform.
43
Description
Description
Description
3.3.3.3 User-Programmable Arbi-
TEMPERATURE RANGES
INDUSTRIAL