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KSZ9563R 数据表(PDF) 110 Page - Microchip Technology |
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KSZ9563R 数据表(HTML) 110 Page - Microchip Technology |
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110 / 226 page  KSZ9563R DS00002419D-page 110 2017-2018 Microchip Technology Inc. 5.1.6.12 Global PTP Message Config 2 Register 1 Selection of Master or Slave 1 = Host port is PTP master ordinary clock 0 = Host port is PTP slave ordinary clock R/W 0b 0 RESERVED RO 1b Address: 0x0516 - 0x0517 Size: 16 bits Bits Description Type Default 15:13 RESERVED RO 000b 12 Enable Unicast PTP 1 = The unicast PTP frames can be recognized. If the packet UDP destination port is either 319 or 320 and the frame MAC/IP address is not the PTP reserved address, then the frame will be considered as a unicast PTP frame and the frame forwarding will be decided by regular lookup table. 0 = Only multicast PTP frames will be recognized. R/W 1b 11 Enable Alternate Master 1 = Alternate master clock is supported. The Sync/Delay_Req frames of the same domain received at non-host ports by active master clock of the same domain will be forwarded to the non-host ports. 0 = Alternate master clock is not supported. The Sync/Delay_Req frames of the same domain received at non-host ports by active master clock of the same domain will be discarded on the host port and will be forwarded to the non-host ports if Sync/Delay_Req is for other domains. R/W 0b 10 PTP Messages Priority TX Queue 1 = All PTP messages are assigned to the highest priority TX queue. 0 = Only the PTP event messages are assigned to the highest priority TX queue. R/W 0b 9 Enable Checking of Associated Sync and Follow_up PTP messages Setting this bit will associate Follow_up message with Sync message when it has the same domain, sequenceID and sourcePortID. The PTP frame will be forwarded to the host port if the ID matches. R/W 0b 8 Enable Checking of Associated Delay_Req and Delay Resp PTP Messages Setting this bit will associate Delay_Resp message with Delay_Req message when it has the same domain, sequenceID and sourcePortID. The PTP frame will be forwarded to the host port if the ID matches. R/W 0b 7 Enable Checking of Associated Pdelay_Req and Pdelay_Resp PTP Messages Setting this bit will associate Pdelay_Resp/Pdelay_Resp_Follow_Up message with Pdelay_Req message when it is with the same domain, sequenceID and sourcePortID. The PTP frame will be forwarded to the host port if ID matches. R/W 0b 6 RESERVED R/W 0b Bits Description Type Default |
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