参数资料
型号: XRT83SH314IB-F
厂商: Exar Corporation
文件页数: 28/101页
文件大小: 0K
描述: IC LIU 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-BBGA
供应商设备封装: 304-PBGA(31x31)
包装: 托盘
XRT83SH314
28
14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.4
3.5.1
ATAOS (Automatic Transmit All Ones)
If ATAOS is selected by programming the appropriate global register, an AMI all ones signal will be transmitted
for each channel that experiences an RLOS condition. If RLOS does not occur, the ATAOS will remain inactive
until an RLOS on a given channel occurs. A simplified block diagram of the ATAOS function is shown in
FIGURE 19. SIMPLIFIED BLOCK DIAGRAM OF THE ATAOS FUNCTION
3.5.2
QRSS/PRBS Generation
The XRT83SH314 can transmit a QRSS/PRBS random sequence to a remote location from TTIP/TRING. To
select QRSS or PRBS, see the register map for programming details. The polynomial is shown in Table 10.
3.6
Transmit Pulse Shaper and Filter
If TCLK is not present, pulled "Low", or pulled "High" the transmitter outputs at TTIP/TRING will automatically
send an all ones or an all zero signal to the line by programming the appropriate global register. By default, the
transmitters will send all zeros. To send all ones, the TCLKCNL bit must be set "High".
TABLE 10: RANDOM BIT SEQUENCE POLYNOMIALS
RANDOM PATTERN
T1
E1
QRSS
220 - 1
PRBS
215 - 1
RLOS
ATAOS
TAOS
TTIP
TRING
Tx
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