参数资料
型号: XRT75R03IVTR
厂商: Exar Corporation
文件页数: 83/92页
文件大小: 0K
描述: IC LIU E3/DS3/STS-1 3CH 128LQFP
标准包装: 750
类型: 线路接口装置(LIU)
驱动器/接收器数: 3/3
规程: DS3,E3,STS-1
电源电压: 3.135 V ~ 3.465 V
安装类型: 表面贴装
封装/外壳: 128-LQFP
供应商设备封装: 128-LQFP(14x20)
包装: 带卷 (TR)
XRT75R03
xr
REV. 1.0.8
THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
81
4
RLB_n
R/W
0
Loop-Back Select - RLB Bit - Channel_n:
This READ/WRITE bit-field along with the corresponding
LLB_n bit-field is used to configure a given channel (within
the XRT75R03) into various loop-back modes.
The relationship between the settings for this input pin, the
corresponding LLB_n bit-field and the resulting Loop-back
Mode is presented below.
3
LLB_n
R/W
0
Loop-Back Select - LLB Bit-field - Channel_n:
Please see the description (above) for RLB_n.
2
E3_n
R/W
0
E3 Mode Select - Channel_n:
This READ/WRITE bit-field, along with Bit 1 (STS-1/
DS3_n) within this particular register, is used to configure a
given channel (of the XRT75R03) into either the DS3, E3
or STS-1 Modes, as depicted below.
0 - Configures Channel_n to operate in either the DS3 or
STS-1 Modes, depending upon the state of Bit 1 (STS-1/
DS3_n) within this same register.
1- Configures Channel_n to operate in the E3 Mode.
BIT NUMBER
NAME
TYPE
DEFAULT
VALUE
DESCRIPTION
Loop-back M ode
Digital Local Loop-back Mode
Analog Local Loop-back Mode
Rem ote Loop-back Mode
Norm al (No Loop-back) Mode
RLB_n
1
0
1
0
LLB_n
1
0
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