参数资料
型号: WJLXT386LEB2
厂商: CORTINA SYSTEMS INC
元件分类: 数字传输电路
英文描述: DATACOM, PCM TRANSCEIVER, PQFP100
封装: 14 X 14MM, ROHS COMPLIANT, LQFP-100
文件页数: 41/86页
文件大小: 1081K
代理商: WJLXT386LEB2
LXT386 — QUAD T1/E1/J1 Transceiver
46
Datasheet
Table 16. LOS Interrupt Status Register, LIS (08H)
Bit
Name
Function
3-0
LIS3-LIS0
These bits are set to “1” every time a LOS status change has occurred since the last clear
interrupt in transceivers 3-0 respectively.
Table 17. DFM Interrupt Status Register, DIS (09H)
Bit
Name
Function
3-0
DIS3-DIS0
These bits are set to “1” every time a DFM status change has occurred since the last
cleared interrupt in transceivers 3-0 respectively.
Table 18. Software Reset Register, RES (0AH)
Bit
Name
Function
3-0
RES3-RES0
Writing to this register initiates a 1 microsecond reset cycle, except for Intel non-
multiplexed mode. When using Intel non-multiplexed host mode, extend cycle time to 2
microseconds. Please refer to Host Mode section for more information. This operation
sets all LXT386 registers to their default values.
Table 19. Performance Monitoring Register, MON (0BH)
Bit
Name
Function
3-0
A3:A0
Protected Monitoring selection. See Table 1 on page 11.
4-7
reserved
Reserved.
Table 20. Digital Loopback Register, DL (0CH)
Bit1
Name
Function2
3-0
DL3-DL0
Setting a bit to “1” enables digital loopback for the respective transceiver.
1. On power up all register bits are set to “0”.
2. During digital loopback LOS and TAOS stay active and independent of TCLK, while data received on TPOS/TNEG/TCKLK is
looped back to RPOS/RNEG/RCLK.
Table 21. LOS/AIS Criteria Register, LCS (0DH)
Bit1
Name
Function2
3-0
LCS3-LCS0
1
T1 Mode2
Don’t care. T1.231 compliant LOS/AIS detection is used.
E1 Mode
Setting a bit to “1” selects the ETS1 300233 LOS. Setting a bit to “0” selects G.775 LOS
mode. AIS works correctly for both ETSI and ITU when the bit is cleared to “0”. See
errata revision 10.3 or higher for a way to implement ETSI LOS and AIS.
1. On power-on reset the register is set to “0”.
2. T1 or E1 operation mode is determined by the PSDR settings.
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