参数资料
型号: XRT86VL30IV80-F
厂商: Exar Corporation
文件页数: 133/175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
55
SINGLE T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION
REV. 1.0.1
3-2
TXLBCLEN[1:0]
R/W
00
Transmit Loopback Code Length
This bit determines transmit loopback code length. There are four
lengths supported by the XRT86VL30 as presented in the table
below
1
FRAMED
R/W
0
Framed Loopback Code
This bit selects either framed or unframed loopback code generation
in the transmit path.
0 = Selects an “Unframed” loopback code for transmission.
1 = Selects a “framed” loopback code for transmission.
0
AUTOENB
R/W
0
Remote Loopback Automatically
This bit configures the XRT86VL30 in remote loopback automati-
cally upon detecting the loopback code activation code specified in
the Receive Loopback Code Activation Register if Receive activa-
tion loopback code is enabled (Register address:0x0126).
The XRT86VL30 will cancel the remote loopback upon detecting the
loopback code deactivation code specified in the Receive Loopback
Code Deactivation register if the Receive deactivation loopback
code is enabled. (Register address:0x0127)
0 = Disables automatic remote loopback upon detecting the receive
activation code.
1 = Enables automatic remote loopback upon detecting the receive
activation code.
TABLE 37: LOOPBACK CODE CONTROL REGISTER - CODE 0 (LCCR0)
HEX ADDRESS: 0X0124
BIT
FUNCTION
TYPE
DEFAULT
DESCRIPTION-OPERATION
TXLBCLEN[1:0]
TRANSMIT LOOPBACK CODE ACTIVATION
LENGTH
00
Selects 4-bit transmit loopback code
Sequence
01
Selects 5-bit transmit loopback code
Sequence
10
Selects 6-bit transmit loopback code
Sequence
11
Selects 7-bit transmit loopback code
Sequence
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