参数资料
型号: XRT83SL314IB-L
厂商: Exar Corporation
文件页数: 54/83页
文件大小: 0K
描述: IC LIU SH T1/E1/J1 14CH 304TBGA
标准包装: 27
类型: 线路接口装置(LIU)
驱动器/接收器数: 14/14
规程: T1,E1,J1
电源电压: 3.135 V ~ 3.465 V
安装类型: 表面贴装
封装/外壳: 304-LBGA
供应商设备封装: 304-TBGA(31x31)
包装: 托盘
XRT83SL314
xr
REV. 1.0.1
14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
55
D3
TxOn
Transmit ON/OFF
Upon power up, the transmitters are powered off. This bit is used
to turn the transmitter for this channel On or Off if the TxON pin is
pulled "High". If the TxON pin is pulled "Low", all 14 transmitters
are powered off.
0 = Transmitter is Powered OFF
1 = Transmitter is Powered ON
R/W
0
D2
D1
D0
LOOP2
LOOP1
LOOP0
Loopback Diagnostic Select
LOOP[2:0] are used to select the loopback mode.
0XX = No Loopback
100 = Dual Loopback
101 = Analog Loopback
110 = Remote Loopback
111 = Digital Loopback
R/W
0
TABLE 28: MICROPROCESSOR REGISTER 0X03H BIT DESCRIPTION
CHANNEL 0-13 (0X03H-0XD3H)
BIT
NAME
FUNCTION
Register
Type
Default
Value
(HW reset)
D7
D6
NLCDE1
NLCDE0
Network Loop Code Detection Enable
NLCDE[1:0] are used to select the loop code detection.
00 = Disabled
01 = Detect Loop Up Code
10 = Detect Loop Down Code
11 = Automatic Loop Code Detection
R/W
0
D5
CODES
Encoding/Decoding Select (Single Rail Mode Only)
0 = HDB3 (E1), B8ZS (T1)
1 = AMI Coding
R/W
0
D4
D3
RxRES1
RxRES0
Receive External Fixed Resistor
RxRES[1:0] are used to select the value for a high precision exter-
nal resistor to improve return loss.
00 = None
01 = 240
10 = 210
11 = 150
R/W
0
TABLE 27: MICROPROCESSOR REGISTER 0X02H BIT DESCRIPTION
CHANNEL 0-13 (0X02H-0XD2H)
BIT
NAME
FUNCTION
Register
Type
Default
Value
(HW reset)
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