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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AM79C901AVCT датащи(PDF) 43 Page - Advanced Micro Devices |
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AM79C901AVCT датащи(HTML) 43 Page - Advanced Micro Devices |
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43 / 90 page  Am79C901A 43 PR ELI M IN AR Y USER ACCESSIBLE REGISTERS The Am79C901A PHY has two types of user regis- ters: 1 Mbps HomePNA PHY management registers (HPRs) and 10BASE-T PHY management registers (TBRs). 1 Mbps HomePNA PHY Management Registers (HPRs) The registers of the HomePNA PHY are accessible via the MII or the SPI interface. All reserved registers should not be written to, and reading them will return an undetermined value. Table 16 lists all the registers implemented in the HomePNA PHY. Table 16. 1 Mbps HomePNA PHY Management Registers (HPRs) Register Address Symbol Name Basic/Extended Default Value After H_RESET 0 HPR0 Control Register B 0400h 1 HPR1 Status Register B 0841h 2 HPR2 PHY_ID Register E 0000h 3 HPR3 PHY_ID Register E 6B91h 4 HPR4 Auto-Negotiation Register E 0021h 5 HPR5 Auto-Negotiation Register E 0000h 6 HPR6 Auto-Negotiation Register E 0000h 7 HPR7 Auto-Negotiation Register E 0000h 8-15 HPR8-HPR15 Reserved E – 16 HPR16 PHY Control Register E 0005h 17 HPR17 Status/Control Register E 000xh 18 HPR18 PHY TXCOMM Register E 0000h 19 HPR19 PHY TXCOMM Register E 0000h 20 HPR20 PHY RXCOMM Register E 0000h 21 HPR21 PHY RXCOMM Register E 0000h 22 HPR22 PHY AID Register E 0000h 23 HPR23 PHY Noise Control Register E 03FFh 24 HPR24 PHY Noise Control 2 Register E F4xxh 25 HPR25 PHY Noise Statistics Register E 03FFh 26 HPR26 Event Status Register E 0000h 27 HPR27 AID Control Register E 1440h 28 HPR28 ISBI Control Register E 2C1Ch 29 HPR29 TX Control Register E 0444h 30 HPR30 Drive Level Control Register E x549h 31 HPR31 Analog Control Register E C000h |
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