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AM79C976 数据表(PDF) 21 Page - Advanced Micro Devices |
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AM79C976 数据表(HTML) 21 Page - Advanced Micro Devices |
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21 / 309 page ![]() 8/01/00 Am79C976 21 P R E L I M INARY PIN DESIGNATIONS Listed By Group Pin Name Pin Function Signal Type1 Pin Type1 No. of Pins Clock Interface XTAL1 Crystal I I 1 XTAL2 Crystal O O 1 XCLK External Clock I I 1 CLKSEL0 Clock Select I I 1 CLKSEL1 Clock Select I I 1 CLKSEL2 Clock Select I I 1 TEST Test Select I I 1 PCI Bus Interface AD[31:0] Address/Data Bus IO IO 32 C/BE[3:0] Bus Command/Byte Enable IO IO 4 CLK Bus Clock I I 1 DEVSEL Device Select IO IO 1 FRAME Cycle Frame IO IO 1 GNT Bus Grant I I 1 IDSEL Initialization Device Select I I 1 INTA Interrupt O TSO 1 IRDY Initiator Ready IO IO 1 PAR Parity IO IO 1 PERR Parity Error IO IO 1 REQ Bus Request O TSO 1 RST Reset I I 1 SERR System Error IO IO 1 STOP Stop IO IO 1 TRDY Target Ready IO IO 1 Board Interface LED0 LED0 O TSO 1 LED1 LED1 O TSO 1 LED2 LED2 O IO 1 LED3 LED3 O IO 1 PHY_RST Reset to PHY O O 1 FC Flow Control I I 1 EEPROM Interface |
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