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SNLS059E Datasheet(PDF) 41 Page - Texas Instruments |
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SNLS059E Datasheet(HTML) 41 Page - Texas Instruments |
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41 / 110 page  40 www.national.com 4.0 Register Set (Continued) 4.2 Operational Registers The DP83815 provides the following set of operational registers mapped into PCI memory space or I/O space. Writes to reserved register locations are ignored. Reads to reserved register locations return undefined values. Table 4-2 Operational Register Map Offset Tag Description Access MAC/BIU Registers 00h CR Command Register R/W 04h CFG Configuration Register R/W 08h MEAR EEPROM Access Register R/W 0Ch PTSCR PCI Test Control Register R/W 10h ISR Interrupt Status Register RO 14h IMR Interrupt Mask Register R/W 18h IER Interrupt Enable Register R/W 1Ch Reserved 20h TXDP Transmit Descriptor Pointer Register R/W 24h TXCFG Transmit Configuration Register R/W 28-2Ch Reserved 30h RXDP Receive Descriptor Pointer Register R/W 34h RXCFG Receive Configuration Register R/W 38 Reserved 3Ch CCSR CLKRUN Control/Status Register R/W 40h WCSR Wake on LAN Control/Status Register R/W 44h PCR Pause Control/Status Register R/W 48h RFCR Receive Filter/Match Control Register R/W 4Ch RFDR Receive Filter/Match Data Register R/W 50h BRAR Boot ROM Address R/W 54h BRDR Boot ROM Data R/W 58h SRR Silicon Revision Register RO 5Ch MIBC Management Information Base Control Register R/W 60-78h MIB Management Information Base Data Registers RO 7Ch Reserved Internal Phy Registers 80h BMCR Basic Mode Control Register R/W 84h BMSR Basic Mode Status Register RO 88h PHYIDR1 PHY Identifier Register #1 RO 8Ch PHYIDR2 PHY Identifier Register #2 RO 90h ANAR Auto-Negotiation Advertisement Register R/W 94h ANLPAR Auto-Negotiation Link Partner Ability Register R/W 98h ANER Auto-Negotiation Expansion Register R/W 9Ch ANNPTR Auto-Negotiation Next Page TX R/W A0-BCh Reserved Reserved C0h PHYSTS PHY Status Register RO C4h MICR MII Interrupt Control Register RW C8h MISR MII Interrupt Status Register RW CCh Reserved Reserved D0h FCSCR False Carrier Sense Counter Register R/W D4h RECR Receive Error Counter Register R/W D8h PCSR 100 Mb/s PCS Configuration and Status Register R/W DCh-E0h Reserved Reserved E4h PHYCR PHY Control Register R/W E8h TBTSCR 10Base-T Status/Control Register R/W ECh-FCh Reserved Reserved |
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