Electronic Components Datasheet Search |
|
XRT91L81 Datasheet(PDF) 7 Page - Exar Corporation |
|
XRT91L81 Datasheet(HTML) 7 Page - Exar Corporation |
7 / 40 page XRT91L81 2.488/2.666GBPS OC-48/STM-16 SONET/SDH TRANSCEIVER PRELIMINARY REV. P1.0.3 5 HARDWARE CONTROL NAME LEVEL TYPE PIN DESCRIPTION RLOOPS LVTTL I C10 Serial Remote Loopback Hardware Mode The serial remote loopback mode intercon- nects the receive serial input data to the transmit serial output data. If serial remote loopback is enabled, the 4-bit parallel transmit input data is ignored while the 4-bit parallel receive out- put data is maintained. "Low" = Disabled "High" = Serial Remote Loopback Mode Enabled RLOOPP LVTTL I A11 Parallel Remote Loopback Hardware Mode The parallel remote loopback mode allows the input serial data stream to pass through the clock and data recovery circuit and loopback at the parallel interface to the serial output port. The 4-bit parallel transmit input data is ignored while the 4-bit parallel receive output data is main- tained. "Low" = Disabled "High" = Parallel Remote Loopback Mode Enabled DLOOP LVTTL I B6 Digital Loopback Hardware Mode The digital loopback mode interconnects the 4-bit parallel transmit input data and TxCLK to the 4-bit parallel receive output data and RxCLK respectively while maintaining the transmit serial output data. If digital loopback is enabled, the receive serial input data is ignored. "Low" = Disabled "High" = Digital Loopback Mode Enabled NOTE: DLOOP and RLOOPS can be enabled simultaneously to achieve a dual loopback diagnostic feature. LPTIME_JA LVTTL I C6 Loop Timing Mode With JA The LPTIME_JA pin must be set "High" in order to select the recovered receive clock as the reference source for the de-jitter PLL. "Low" = Disabled "High" = Enabled LPTIME_NO_JA LVTTL I P2 Loop Timing Mode With No JA When the loop timing mode is activated the external reference clock to the input of the CMU is replaced with the 1/16th or the 1/32nd of the high-speed recovered receive clock from the CDR. "Low" = Disabled "High" = Loop timing Activated |
Similar Part No. - XRT91L81 |
|
Similar Description - XRT91L81 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |