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AM79C978VC/W 数据表(PDF) 215 Page - Advanced Micro Devices |
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AM79C978VC/W 数据表(HTML) 215 Page - Advanced Micro Devices |
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215 / 261 page ![]() Am79C978 215 REGISTER PROGRAMMING SUMMARY Am79C978 Programmable Registers Table 93. Control and Status Registers Register Contents CSR0 Status and control bits: (DEFAULT = 0004) 8000 ERR 4000 -- 2000 CERR 1000 MISS 0800 MERR 0400 RINT 0200 TINT 0100I IDON 0080 INTR 0040 IENA 0020 RXON 0010 TXON 0008 TDMD 0004 STOP 0002 STRT 0001 INIT CSR1 Lower IADR (Maps to CSR 16) CSR2 Upper IADR (Maps to CSR 17) CSR3 Interrupt masks and Deferral Control: (DEFAULT = 0) 8000 -- 4000 -- 2000 -- 1000 MISSM 0800 MERRM 0400 RINTM 0200 TINTM 0100 IDONM 0080 -- 0040 DXSUFLO 0020 LAPPEN 0010 DXMT2PD 0008 EMBA 0004 BSWP 0002 -- 0001 -- CSR4 Interrupt masks, configuration and status bits: (DEFAULT = 0115) 8000 -- 4000 DMAPLUS 2000 -- 1000 TXDPOLL 0800 APAD_XMT 0400 ASTRP_RCV 0200 MFCO 0100 MFCOM 0080 UNITCMD 0040 UNIT 0020 RCVCCO 0010 RCVCCOM 0008 TXSTRT 0004 TXSTRTM 0002 -- 0001 -- CSR5 Extended Interrupt masks, configuration and status bits: (DEFAULT = 0XXX) 8000 TOKINTD 4000 LTINTEN 2000 -- 1000 -- 0800 SINT 0400 SINTE 0200 -- 0100 -- 0080 EXDINT 0040 EXDINTE 0020 MPPLBA 0010 MPINT 0008 MPINTE 0004 MPEN 0002 MPMODE 0001 SPND CSR7 Extended Interrupt masks, configuration and status bits: (DEFAULT = 0000) 8000 FASTSPND 4000 RXFRMTG 2000 RDMD 1000 RXDPOLL 0800 STINT 0400 STINTE 0200 MREINT 0100 MREINTE 0080 MAPINT 0040 MAPINTE 0020 MCCINT 0010 MCCINTE 0008 MCCIINT 0004 MCCIINTE 0002 MIIPDTINT 0001 MIIPDTNTE CSR8 - CSR11 Logical Address Filter CSR12 - CSR14 Physical Address Register CSR15 MODE: (DEFAULT = 0) bits [8:7] = PORTSEL, Port Selection 11 PHY Selected 10 Reserved 8000 PROM 4000 DRCVBC 2000 DRCVPA 1000 -- 0800 -- 0400 -- 0200 -- 0100 PORTSEL1 0080 PORTSEL0 0040 INTL 0020 DRTY 0010 FCOLL 0008 DXMTFCS 0004 LOOP 0002 DTX 0001 DRX CSR47 TXPOLLINT: Transmit Polling Interval CSR49 RXPOLLINT: Receive Polling Interval CSR58 Software Style (mapped to BCR20) bits [7:0] = SWSTYLE, Software Style Register. 0000 LANCE/PCnet-ISA 0002 PCnet-32 8000 -- 4000 -- 2000 -- 1000 -- 0800 -- 0400 APERREN 0200 -- 0100 SSIZE32 0080 -- 0040 -- 0020 -- 0010 -- 0008 SWSTYLE3 0004 SWSTYLE2 0002 -- 0001 SWSTYLE0 |
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