Download - 第七章 多微处理机控制系统
Transcript
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8-1 (TCS) (LCS)
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7-2 (TCS) (LCS)
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1
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2
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3
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1
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(CSMACD)
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2
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3
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7-3
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1
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2
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STD STD8STD8/1632STD STDSTD1STD STD114.3mm*165.1mm565
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16 12 +5V34GND56 -5V 714 D0D7 1530 A0A15 3152 22 5356 5354/AUXGND 55+12V+12V 56-12V-12V
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8DD7A16A23 16A8Al5D8D15 STD I/O I/O
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IO 31 /WR 32/RD 33/IORQI/O 34/MEMRQ 35IOEXPI/O 36MEMEX 37/REFRESH 38/MCSYNCCPU 39/STATUS1 40/STATUS0 CPU
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41/BUSAK 42/BUSRQ 43/INTAK 44/INTRQ 45/WAITRQ 46/NMIRQ 47/SYSRESET 48/PBRESET 49/CLOCK 50/CNTRL 51BAO 52BAI
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2
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3 STDSTD
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PC PC PC 62 8 20 6 IO 3DMA + 5V-5V+12V-12V
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RS-232C1RS-232C RS-232C
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2RS232C DB-25 RS232CTxDRxD1-3V-25V 0+3V+25VRTSCTSDSRCD ON+3V+25V OFF'-3V-25V
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RS232C
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3/
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RS422A RS-422A DTEDCE RS-422A1-6V-2V0+2V+6V-2V+2V
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RS422A RS422A10M20K1500m
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RS-232CRS422A DTEDCE 20mA