PowerPoint 5 1. 5 2. 5 3. (Expansion Bus)VESAPCICPU 5 5. 5 5 5 10. 5 2) 5 3) 5 11. Pentium CPU0.35 Pentium CPU0.25 CPU0.18 CPU Intel5-1 808640——()80865-2 5 5.1 8086 5 1. (2) AD15AD0/16(T1)16(AD15AD0)(I/O) 5 5 5-2 8086 (5) BHE/S7/S7()T116/8AD15AD8A0()TS7DMA 5 2. 8086MN/MX(33#)/8086MN/MX+5 V80868086MN/MX808682888086(S2S1S0)82888288 5 5 S2S1S0M/IODT/RDENM/IO/()CPU(M/IO=1)I/O(M/IO=0)DT/R/()CPU(DT/R=1)(DT/R=0)DEN()CPUI/O 5 5 5 5-5 QS1QS0 5 INTALOCKWRWR()8086 CPUI/OWR 5 2) MN/MX() (2) READY——()8086 CPU8086 CPUREADY=0()8086 CPUTREADY=1()8086 CPU 5 (4) NMI——()NMI8086 CPU 5 (6) RESET——()RESET8086 CPUFRIPCSFFFFH 5 3. (1) CLK——()8086 CPU13(=13) (2) VCC——()(+5V±10) (3) GND—— (2) 8086 CPUAD15AD0/8088 CPUAD7AD0A15A8168086808880888086 5 5.2 8088 5 5 5 5.3 8086 5 1) 8284A 8284A8086(8088)/8086(8088)8284A5.48284A 5 5.4 8284A 5 5 5 2) 5 3) 5 2. 5 5.5 8086 5 1) 8288 5 5-7 8288 5 5.7 8288 5 IOB/IOB=08288AENAEN()115 ns8288I/OI/OIOB=18288I/OI/O(IORCIOWCAIOWCINTA)AEN 5 5 AENAEN=18288AEN=0AEN115 ns8288I/OAENI/O CENCEN=1CEN=0DENPDEN82888288CEN CLK8288CLK ALE 5 5 5 5.3 8086 1. 5 5 T1CPUT(T2T3T4)T2T4T4 5 5 5 2. 8086 CPU / I/O/ () /() 1) 5 5.9 8086 5 8086 (2) A19/S6A16/S3T1CPU4T2T4S6S3 (3) BHE/S7T1BHE(BHE)8BHE(A0)T2T4 (6)RDT2I/OI/ORD(ADl5AD0) (8) DENT2T3 5 2) 5.10 8086 5 (2) WRT2T4I/OI/OWR (3) DT/R 5 3) 5 5.11 5 5 4) 5 5.12 / 5 5) 5 5.13 5 3. 5 8288I/O MRDCMWTCAMWCIORCIOWCAIOWC2105.145.15S2S1S0T1T3()T3T4(S2=S1=S0=) 5 5.14 8086() 5 5.15 8086() 5 3) 5.4.1 5 5 (2) (3) 5 5 5 CPUDMA 5 5 2) (4) ACKRD REQACKRDACKRDACKACK 5 IBM-PCXTPCI/OI/OI/O62862J1J85.18 628(+5 V25 V1+12 V112 V13)82026 5 5.18 PC 5 1. 2. 5 3. 26 1) (21) IRQ2IRQ7() 5 5 5 T/C()DMAT/C RESET DRV() 5 3) (3) CLK()OSC4.77 MHz(210 ns)33 CARDSLCTD()J8 5 5.4.3 ISA (2) SD8SD158 (4) PC/XTIRQ8IRQ15IRQ13AT(8259)IRQ2PC/XTIRQ2ATIRQ9IRQ0(8254)() 5 5 (9) I/O CS161616“” 5 ISA162416 MB8 MHz8 MB/s 5 5.4.4 EISA 5 (1) D31D161632 (2) LA31LA242432 (3) LA23LA16A23A16 (4) BE3BE0()324 (5) LOCK() (16) MSBUSRT() (Non-Burst Type)EISAMasterSlave2BCLK Peek-Poke(Peek-Poke and Locked Exchange)CPUEISAI/O 5 EISA33 MB/s324 GBEISAI/OCPUEISAPC 5 5.4.5 VLPCI 5 1. VL 5 2. PCI PCI 5 (3) PCIBIOS(/)PCI 5 (8) (ASIC)()PCIPCIISA/EISA PCICPUPCI“”PCI(ISAEISA)“”PCIPCI 5 5.21 PCI 5 1) (2) C/BE0C/BE3/PCIC/BE00C/BE0C/BE3 5 5 2) (3) ERDY(InitiatorReady) (6) IDSEL(Initiatization Device Select)/ (7) LOCK 4) () 8) Cache (2) SDONE(Snoop Done) 5 9) JTAG 5 5.4.6 USB USB(Universal Serial Bus)PC1995PCUSBPCUSB1997WIN95OSR2(WIN97)USB1998Windows 98USBUSBUSB 5 1. USB 5 5 2. USB 5 5 5 3. USB (2) USBUSB 5 (4) USB(Hot Plug)USBPCUSBSCSI 5 (7) USB 5 5 5 1) (Control) 5 2) (Isochronous) 5 4) (Bulk) 5 8. USB 1) USB 5 2) USB 5 3) USB(Packet)(Packet ID)CRCPacket ID5-9 5 5 5) 5 9. USB 5 5 5 5.2 IA-32 5.3 IA-32() 5.5 5 5.8 80868086 5.9 5.10 PCISAEISA T i T 1 »ò T 4