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AM79C971VCW 数据表(PDF) 15 Page - Advanced Micro Devices |
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AM79C971VCW 数据表(HTML) 15 Page - Advanced Micro Devices |
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15 / 265 page ![]() Am79C971 15 PIN DESIGNATIONS (PQR160, PQL176) Listed By Group Note: 1. Not including test features Pin Name Pin Function Type1 Driver No. of Pins PCI Bus Interface AD[31:0] Address/Data Bus IO TS3 32 C/BE[3:0] Bus Command/Byte Enable IO TS3 4 CLK Bus Clock I NA 1 DEVSEL Device Select IO STS6 1 FRAME Cycle Frame IO STS6 1 GNT Bus Grant I NA 1 IDSEL Initialization Device Select I NA 1 INTA Interrupt O OD6 1 IRDY Initiator Ready IO STS6 1 PAR Parity IO TS3 1 PERR Parity Error IO STS6 1 REQ Bus Request O TS3 1 RST Reset I NA 1 SERR System Error IO OD6 1 STOP Stop IO STS6 1 TRDY Target Ready IO STS6 1 Board Interface LED0 LED0 O LED 1 LED1 LED1 O LED 1 LED2 LED2 O LED 1 LED3 LED3 O LED 1 SLEEP Sleep Mode I NA 1 XTAL1 Crystal Input I NA 1 XTAL2 Crystal Output O XTAL 1 EEPROM Interface EECS Serial EEPROM Chip Select O O6 1 EEDI Serial EEPROM Data In O LED 1 EEDO Serial EEPROM Data Out I NA 1 EESK Serial EEPROM Clock IO LED 1 Expansion ROM Interface AS_EBOE Address Strobe/Expansion Bus Output Enable O O6 1 EBCLK Expansion Bus Clock I NA 1 EBD[7:0] Expansion Bus Data [7:0] IO TS6 8 EBDA[15:8] Expansion Bus Data/Address [15:8] IO TS6 8 EBUA_EBA[7:0] Expansion Bus Upper Address /Expansion Bus Address [7:0] O O6 8 EBWE Expansion Bus Write Enable O O6 1 ERAMCS Expansion Bus RAM Chip Select O O6 1 EROMCS Expansion Bus ROM Chip Select O O6 1 |
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