參數(shù)資料
型號: XRT86VL38IB484-F
廠商: Exar Corporation
文件頁數(shù): 121/160頁
文件大?。?/td> 0K
描述: IC LIU/FRAMER T1/E1/J1 8CH 484BG
標準包裝: 60
控制器類型: T1/E1/J1 調(diào)幀器,LIU
電源電壓: 3.3V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 484-BGA
供應商設備封裝: 484-STBGA(23x23)
包裝: 托盤
XRT86VL38
58
REV. V1.2.0
OCTAL T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION
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 XRT86VL38 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 XRT86VL38 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:0xn126).
The XRT86VL38 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:0xn127)
0 = Disables automatic remote loopback upon detecting the receive
activation code.
1 = Enables automatic remote loopback upon detecting the receive
activation code.
TABLE 38: LOOPBACK CODE CONTROL REGISTER (LCCR)
HEX ADDRESS: 0XN124
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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