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VSC8221 データシート(PDF) 24 Page - Microsemi Corporation |
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VSC8221 データシート(HTML) 24 Page - Microsemi Corporation |
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24 / 138 page  VSC8221 Data Sheet VMDS-10106 Revision 4.1 December 2006 24 of 26 26 Table 12. Twisted Pair interface Signals 100 TFBGA BALL Signal Name Type Description A9 TXVPA ADiFF TX/RX Channel “A” Positive Signal. Positive differential signal connected to the positive primary side of the transformer. This signal forms the positive signal of the “A” data channel. in all three speeds, this signal generates the secondary side signal, normally connected to RJ-45 pin 1. in 100BASE-FX mode, it is connected instead to the positive SFP transmit data signal (SFP_TD+). See Section 9: “System Schematics” for details. B9 TXVNA ADiFF TX/RX Channel “A” Negative Signal. Negative differential signal connected to the negative primary side of the transformer. This signal forms the negative signal of the “A” data channel. in all three speeds, this signal generates the secondary side signal, normally connected to RJ-45 pin 2. in 100BASE-FX mode, it is connected instead to the negative SFP transmit data signal (SFP_TD–). See Section 9: “System Schematics” for details . A8 TXVPB ADiFF TX/RX Channel “B” Positive Signal. Positive differential signal connected to the positive primary side of the transformer. This signal forms the positive signal of the “B” data channel. in all three speeds, this signal generates the secondary side signal, normally connected to RJ-45 pin 3. in 100BASE-FX mode, it is connected instead to the positive SFP receive data signal (SFP_RD+). See Section 9: “System Schematics” for details. B8 TXVNB ADiFF TX/RX Channel “B” Negative Signal. Negative differential signal connected to the negative primary side of the transformer. This signal forms the negative signal of the “B” data channel. in all three speeds, this signal generates the secondary side signal, normally connected to RJ-45 pin 6. in 100BASE-FX mode, it is connected instead to the negative SFP receive data signal (SFP_RD–). See Section 9: “System Schematics” for details. A7 TXVPC ADiFF TX/RX Channel “C” Positive Signal. Positive differential signal connected to the positive primary side of the transformer. This signal forms the positive signal of the “C” data channel. in 1000Mb mode, this signal generates the secondary side signal, normally connected to RJ-45 pin 4 (not used in 10M/ 100M modes). See Section 9: “System Schematics” for details. B7 TXVNC ADiFF TX/RX Channel “C” Negative Signal. Negative differential signal connected to the negative primary side of the transformer. This signal forms the negative signal of the “C” data channel. in 1000Mb mode, this signal generates the secondary side signal, normally connected to RJ-45 pin 5 (not used in the 10M/100M modes). See Section 9: “System Schematics” for details. A6 TXVPD ADiFF TX/RX Channel “D” Positive Signal. Positive differential signal connected to the positive primary side of the transformer. This signal forms the positive signal of the “D” data channel. in 1000Mb mode, this signal generates the secondary side signal, normally connected to RJ-45 pin 7 (not used in the 10M/100M modes). See Section 9: “System Schematics” for details. B6 TXVND ADiFF TX/RX Channel “D” Negative Signal. Negative differential signal connected to the negative primary side of the transformer. This signal forms the negative signal of the “D” data channel. in 1000Mb mode, this signal generates the secondary side signal, normally connected to RJ-45 pin 8 (not used in the 10M/100M modes). See Section 9: “System Schematics” for details. |
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