参数资料
型号: XRT86VL30IV80-F
厂商: Exar Corporation
文件页数: 58/175页
文件大小: 0K
描述: IC FRAMR/LIU T1/E1/J1 QD 80LQFP
标准包装: 90
控制器类型: T1/E1/J1 调帧器,LIU
电源电压: 3.3V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 80-LQFP
供应商设备封装: 80-LQFP(12x12)
包装: 托盘
其它名称: 1016-1486
XRT86VL30IV80-F-ND
XRT86VL30
145
SINGLE T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION
REV. 1.0.1
TABLE 128: LIU CHANNEL CONTROL REGISTER 1 (LIUCCR1)
HEX ADDRESS: 0X0F01
BIT
FUNCTION
TYPE
DEFAULT
DESCRIPTION-OPERATION
7
RXTSEL_n
R/W
0
Receiver Termination Select:
Upon power up, the receivers are in “High” impedance. The receive
termination can be selected by setting this bit according to the fol-
lowing table:
6
TXTSEL_n
R/W
0
Transmit Termination Select:
This bit is used to select between internal termination or “High”
impedance modes for the T1 transmitter according to the following
table:
5-4
TERSEL[1:0]
R/W
00
Termination Impedance Select [1:0]:
These bits are used to control the transmit and receive termination
impedance when the LIU block is configured in Internal Termination
Mode.
In internal termination mode, (i.e., TXTSEL = “1” and RXTSEL =
“1”), internal transmit and receive termination can be selected
according to the following table:
NOTE:
In the internal termination mode, the transmitter output
should be AC coupled to the transformer.
3
RxJASEL_n
R/W
0
Receive Jitter Attenuator Enable
This bit permits the user to enable or disable the Jitter Attenuator in
the Receive Path within the XRT86VL30 device.
0 = Disables the Jitter Attenuator to operate in the Receive Path
within the Receive T1 LIU Block.
1 = Enables the Jitter Attenuator to operate in the Receive Path
within the Receive T1 LIU Block.
RXTSEL
RX Termination
0
1
"High" Impedance
Internal
TXTSEL
TX Termination
0
1
"High" Impedance
Internal
TERSEL1
TERSEL0
0
1
0
1
Internal Transmit
and Receive
Termination
100
110
75
120
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