參數(shù)資料
型號： IDT82V2042EPFG8
廠商： IDT, Integrated Device Technology Inc
文件頁數(shù)： 42/83頁
文件大?。?/td> 0K
描述： IC LIU T1/J1/E1 2CH SHORT 80TQFP
標(biāo)準(zhǔn)包裝： 750
類型： 線路接口裝置（LIU）
規(guī)程： E1
電源電壓： 3.13 V ~ 3.47 V
安裝類型： 表面貼裝
封裝/外殼： 80-LQFP
供應(yīng)商設(shè)備封裝： 80-TQFP（14x14）
包裝： 帶卷 (TR)
其它名稱： 82V2042EPFG8
IDT82V2042E
DUAL CHANNEL T1/E1/J1 SHORT HAUL LINE INTERFACE UNIT
PROGRAMMING INFORMATION
47
December 12, 2005
Table-29 TCF2: Transmitter Configuration Register 2
(R/W, Address = 06H, 26H)
Symbol
Bit
Default
Description
-
7-6
00
Reserved.
SCAL[5:0]
5-0
100001
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 3.3.3.2 User-Programmable Arbi-
= 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.
One step change of this value results in 2% scaling up/down against the pulse amplitude.
= 100001: Default value for E1 75
and 120 . One step change of this value results in 3% scaling up/down
against the pulse amplitude.
Table-30 TCF3: Transmitter Configuration Register 3
(R/W, Address = 07H, 27H)
Symbol
Bit
Default
Description
DONE
7
0
After ‘1’ is written to this bit, a read or write operation is implemented.
RW
6
0
This bit selects read or write operation
= 0: Write to RAM
= 1: Read from RAM
UI[1:0]
5-4
00
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
SAMP[3:0]
3-0
0000
These bits specify the sample address. Each UI has totally 16 samples.
= 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
Table-31 TCF4: Transmitter Configuration Register 4
(R/W, Address = 08H, 28H)
Symbol
Bit
Default
Description
-7
0
Reserved
WDAT[6:0]
6-0
0000000
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].
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