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TLK6002 датащи(PDF) 29 Page - Texas Instruments |
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TLK6002 датащи(HTML) 29 Page - Texas Instruments |
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29 / 96 page ![]() TXAN TXAP TDA_[ 19: 0] Channel A Parallelto Serial TXCLK_A Channel A RXAP RXAN RDA_[ 19: 0] Serialto Parallel COMMA Detect & 8B/ 10 B Decoding RXCLK_A ShallowRemoteLoopback (register 7 .2 ) TXAN TXAP TDA_[ 19: 0] Channel A Parallelto Serial TXCLK_A Channel A RXAP RXAN RDA_[ 19: 0] Serialto Parallel COMMA Detect & 8B/ 10 B Decoding RXCLK_A DeepRemoteLoopback (register 7 .3 ) TLK6002 www.ti.com SLLSE34 – MAY 2010 Figure 2-10. TLK6002 Shallow and Deep Remote Loopback (Channel A) 2.17.1 Link Test Functions The TLK6002 has an extensive suite of built in test functions to support system diagnostic requirements. Each channel has an internal test pattern generator and verifier. Several patterns can be selected via the MDIO that offer extensive test coverage. The test patterns supported are: 27-1, 223-1, 231-1 PRBS (Pseudo Random Bit Stream), CRPAT Short/Long frequency patterns. 2.18 Serial Retime Mode TLK6002 supports serial retime mode of operation. Serial retime mode is enabled through an mdio register bit. In serial retime mode mode: • Incoming serial data on RXAP/N is sent to both RDA_[19:0] parallel and TXBP/N serial outputs. • Incoming serial data on RXBP/N is sent to both RDB_[19:0] parallel and TXAP/N serial outputs. In serial retime mode, the incoming serial data rate on Channel A must be synchronous (0 ppm) to the reference clock supplied to Channel B SERDES. Also, the incoming serial data rate on Channel B must be synchronous (0 ppm) to the reference clock supplied to Channel A SERDES. Note that latency measurement is not possible when in serial retime mode of operation. Figure 2-11 shows operation of TLK6002 in serial retime mode: Copyright © 2010, Texas Instruments Incorporated Description 29 Submit Documentation Feedback Product Folder Link(s): TLK6002 |
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