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AM79C978VC/W 数据表(PDF) 218 Page - Advanced Micro Devices |
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AM79C978VC/W 数据表(HTML) 218 Page - Advanced Micro Devices |
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218 / 261 page  218 Am79C978 Am79C978 Programmable Registers (Continued) RAP Addr Register Contents 22 PCILAT PCI Latency (DEFAULT = FF06) bits [15:8] = MAX_LAT bits [7:0] = MIN_GNT 25 SRAMSIZE SRAM Size (DEFAULT = 0000) bits [7:0] = SRAM_SIZE 26 SRAMBND SRAM Boundary (DEFAULT = 0000) bits [7:0] = SRAM_BND 27 SRAMIC SRAM Interface Control (Default = 0000) 8000PTR TST 4000LOLATRX bits [5:3] = EBCS, Expansion Bus Clock Source 0000 CLK pin, PCI clock 0008 Time Base Clock 0010 EBCLK pin, Expansion Bus Clock bits [2:0] = CLK_FAC, Expansion Bus Clock Factor 0000 1/1 clock factor 0001 1/2 clock factor 0002 -- 0003 -- 28 EPADDRL Expansion Port Address Lower (Default = 0000) 29 EPADDRU Expansion Port Address Upper (Default = 0000) 8000 FLASH 4000 LAINC 2000 -- 1000 -- 0800 -- 0400 -- 0200 -- 0100 -- 0080 -- 0040 -- 0020 -- 0010 -- 0008 EPADDRU3 0004 EPADDRU2 0002 EPADDRU1 0001 EPADDRU0 30 EBDATA Expansion Bus Data Port 31 STVAL Software Timer Interrupt Value (DEFAULT = FFFF) 32 MIICAS PHY Status and Control (DEFAULT = 0000) 8000 ANTST 4000 MIIPD 2000 FMDC1 1000 FMDC0 0800 APEP 0400 APDW2 0200 APDW1 0100 APDW0 0080 DANAS 0040 XPHYRST 0020 XPHYANE 0010 XPHYFD 0008 XPHYSP 0004 -- 0002 MIILP 0001 -- 33 MIIADDR PHY Address (DEFAULT = 0000) bits [9:5] = PHYAD, Physical Layer Device Address bits [4:0] = REGAD, Auto-Negotiation Register Address 34 MIIMDR PHY Data Port 35 PCI Vendor ID PCI Vendor ID Register (DEFAULT = 1022h) 36 PMC Alias PCI Power Management Capabilities (DEFAULT = 0000) 37 DATA 0 PCI Data Register Zero Alias Register (DEFAULT = 0000) 38 DATA 1 PCI Data Register One Alias Register (DEFAULT = 0000) 39 DATA 2 PCI Data Register Two Alias Register (DEFAULT = 0000) 40 DATA 3 PCI Data Register Three Alias Register (DEFAULT = 0000) 41 DATA 4 PCI Data Register Four Alias Register (DEFAULT = 0000) 42 DATA 5 PCI Data Register Five Alias Register (DEFAULT = 0000) 43 DATA 6 PCI Data Register Six Alias Register (DEFAULT = 0000) 44 DATA 7 PCI Data Register Seven Alias Register (DEFAULT = 0000) 45 PMR 1 OnNow Pattern Matching Register 1 46 PMR 2 OnNow Pattern Matching Register 2 47 PMR 3 OnNow Pattern Matching Register 3 |
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