ЖУРНАЛ СТА 1/1997

В ЗАПИСНУЮ КНИЖКУ ИНЖЕНЕРА 1/97 114 СТОРОНА КОМПОНЕНТОВ Номер вывода Обозначение In - вход Описание сигналов Out - выход LOGIC 1 +5VDC In Logic Power (bussed) POWER BUS 3 GND In Logic Ground (bussed) DATA BUS 5 VBB#1 In Logic Bias #1 (-5V) 7 D3 In/Out Low-Order Data Bus 9 D2 In/Out Low-Order Data Bus 11 D1 In/Out Low-Order Data Bus 13 D0 In/Out Low-Order Data Bus 15 A7 Out Low-Order Address Bus 17 A6 Out Low-Order Address Bus 19 A5 OuT Low-Order Address Bus ADDRESS BUS 21 A4 Out Low-Order Address Bus 23 A3 Out Low-Order Address Bus 25 A2 Out Low-Order Address Bus 27 A1 Out Low-Order Address Bus 29 A0 Out Low-Order Address Bus 31 WR* Out Write to Memory or I/O 33 IORQ* Out I/O Address Select 35 IOEXP* In/Out I/O Expansion 37 REFRESH* Out Refresh Timing CONTROL BUS 39 STATUS 1* Out CPU Status 41 BUSAK* Out Bus Acknowledge 43 INTAK* Out Interrupt Acknowledge 45 WAITRQ* In Wait Request 47 SYSRESET* Out System Reset 49 CLOCK* Out Clock from Processor 51 PCO Out Priority Chain Out AUXILIARY 53 AUG GND In AUX Ground (bussed) POWER BUS 55 AUX+V In AUX Positive (+12V DC) СТОРОНА ПЕЧАТНОГО МОНТАЖА LOGIC 2 +5VDC In Logic Power (bussed) POWER BUS 4 GND In Logic Ground (bussed) DATA BUS 6 VBB#2 In Logic Biac #2 (-5V) 8 D7 In/Out High-Order Data Bus 10 D6 In/Out High-Order Data Bus 12 D5 In/Out High-Order Data Bus 14 D4 In/Out High-Order Data Bus 16 A15 Out High-Order Data Bus 18 A14 Out High-Order Data Bus 20 A13 Out High-Order Data Bus ADDRESS BUS 22 A12 Out High-Order Data Bus 24 A11 Out High-Order Data Bus 26 A10 Out High-Order Data Bus 26 A9 Out High-Order Data Bus 30 A8 Out High-Order Data Bus 32 RD* Out Read Memory or I/O 34 MEMRQ* Out Memory Address Select 36 MEMRX In/Out Memory Expansion 38 MCSYNC* Out CPU Machine Cycle Sync. CONTROL BUS 40 STATUS 0* Out CPU Status 42 BUSRQ* In Bus Request 44 INTRQ* In Interrupt Request 46 NMIRQ* In Nonmaskable Interrupt 48 PBRESET* In Push-Button Reset 50 CNTROL* In AUX Timing 52 PCI In Priority Chain In AUXILIARY 54 AUG GND In AUX Ground (bussed) POWER BUS 56 AUX-V In AUX Positive (-12V DC) НАЗНАЧЕНИЕ ВЫВОДОВ ШИНЫ STD