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PM5313 bảng dữ liệu(PDF) 71 Page - PMC-Sierra, Inc |
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PM5313 bảng dữ liệu(HTML) 71 Page - PMC-Sierra, Inc |
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71 / 646 page ![]() PRODUCTION PMC-Sierra, Inc. PM5313 SPECTRA-622 DATASHEET PMC-1981162 ISSUE 6 SONET/SDH PAYLOAD EXTRACTOR/ALIGNER FOR 622 MBIT/S PROPRIETARY AND CONFIDENTIAL 39 Pin Name Type Pin No. Function RLAIS/ Input E17 The receive line AIS insertion (RLAIS) signal controls the insertion of line AIS in the receive outgoing stream, when the ring control port is disabled. When RLAIS is set high, line AIS is inserted in the receive outgoing stream. When RLAIS is set low, line AIS may be optionally inserted automatically upon detection of loss of signal, loss of frame, section trace alarms or line AIS in the incoming stream. RLAIS is sampled on the rising edge of RCLK. The SPECTRA-622 Receive LAIS Control register contains the register bits that control the alarms that are inserted using the RLAIS pin. TRCPCLK The transmit ring control port clock (TRCPCLK) signal provides timing for the transmit ring control port when the ring control port is enabled. TRCPCLK is nominally a 3.24 MHz, 50% duty cycle clock and can be connected directly to the RRCPCLK output of a mate SPECTRA-622 in ring- based add-drop multiplexer applications. TRCPFP and TRCPDAT are sampled on the rising edge of TRCPCLK. The enabling and disabling of the ring control port is controlled by the RCPEN bit in the SPECTRA-622 Ring Control register. |
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