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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AM79C971VCW датащи(PDF) 199 Page - Advanced Micro Devices |
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AM79C971VCW датащи(HTML) 199 Page - Advanced Micro Devices |
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199 / 265 page  Am79C971 199 AM79C971 BUS CONFIGURATION REGISTERS (CONTINUED) 20 SWSTYLE Software Style (DEFAULT = 0000, maps to CSR 58) 21 INTCON Interrupt Control 8000 -- 4000 -- 2000 -- 1000 -- 0800-- 0400-- 0200-- 0100-- 0080-- 0040-- 0020-- 0010-- 0008-- 0004-- 0002-- 0001-- 22 PCILAT PCI Latency (DEFAULT = FF06) bits [15:8] = MAX_LAT bits [7:0] = MIN_GNT 25 SRAMSIZE SRAM Size (DEFAULT = 000) bits [7:0] = SRAM_SIZE 26 SRAMBND SRAM Boundary (DEFAULT = 0000) bits [7:0] = SRAM_BND 27 SRAMIC SRAM Interface Control 8000 PTR TST 4000 LOLATRX bits [5:3] = EBCS, Expansion Bus Clock Source 0000 CLK pin, PCI clock (external clock not required) 0008 XTAL1 and XTAL2 pins, 20 MHz clock (external clock not required) 0010 EBCLK pin, Expansion Bus Clock (external clock not required) bits [2:0] = CLK_FAC, Expansion Bus Clock Factor 0000 1/1 clock factor 0001 1/2 clock factor 0002 -- 0003 -- EPADDRL Expansion Port Address Lower 29 EPADDRU Expansion Port Address Upper 8000 FLASH 4000 AINC 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 MII Status and Control (DEFAULT = 0400) 8000 ANTST 4000 MIIPD 2000 FMDC1 1000 FMD0 0800 APEP 0400 APDW2 0200 APDW1 0100 APDW0 0080 DANAS 0040 XPHYRST 0020 XPHYANE 0010 XPHYFD 0008 XPHYSP 0004 MII µL 0002 MIILP 0001 FCON 33 MIIADDR MII Address bits [9:5] = PHYAD, Physical Layer Device Address bits [4:0] = REGAD, MII/Auto-Negotiation Register Address 34 MIIMDR MII Data Port |
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