主板知识.doc

11. 1. L-.2. C-.3. BC-4. R-5.9231 -6.74 -7.PQ-8.VTQV-9.VDD-10.RN-11. ZD-12.W-13.IC-14.ICNU-15.XYGZ-16.S-17.CM-(14.31818 )5. ATX 5V,ATX ATX ATX ATX 5V0 ATX 5V0 6. 3.5 450-700 1V14.318MOSCPCIB16 ISAB30 OSCOSC 450-700 2V OSC CPUCACHEI/OR2 PCIB8 ISAB20 21.5V450-700 RESETCLK RESETCLK RESET AD 7. (1).L=A*B(2) L=A+B(3)L=A L=A*BL=A+B L=A*BL=A+B L=A*B+ A*BL=A35.168 DIMM 1. GND GND 2. 3. VCC VCC4. 5. 1. GND GND2. 3. 4. VCC VCC5. 6. CB4 CB5 CB0 CB17. GND GND 8. NC VCC VCC9. CAS DQM4 /WE DQM010. DQM5 CS1 DQM1 CS011. RAS GND D/C GND12. 13. 14. BA0 A10/AP15. VCC BA1 VCC1. CLK VCC CLK2. GND CKE0 GND DC3. CS3 DQM6 CS2 DQM24. DQM7 GND DQM3 DC5. VCC VCC 6. CB6 CB27. CB7 GND CB3 GND8. 9. 10. VCC VCC 11. VREF VREF12. GND CKE1 GND13. 14. GND GND15. 16. 17. VCC VCC 18. 19. GND GND420. CLK CLK 21. SA0 SA1 CDA22. SA2 VCC=3.3V SCL VCC23. SDRAM SDRAM (1) HY HYUNDAI - MT Micron - GM LG-Semicon HYB SIEMENS - HM Hitachi - MB Fujitsu - TC Toshiba - KM Samsung - KS KINGMAX - (2): -7 SDRAM PC143 ,7ns. C75 SDRAM PC133,7.5ns. C8 SDRAM PC125,8ns. C7k/-7J/10P/10S SDRAM PC100 ,10ns. C10K SDRAMPC66,15ns.(3) HY 5a b ccc dd e f g h ii-jj5a a ,7-SDRAM; DDDR SDRAM.b ,V3.3V; U-2.5V; 5V.CCC ,1616M; 6564M; 129129M; 256256M.dd f 0LVTTL 1SSTL3 2SSTL_2.g Bh L ii TC400mil TSOPH.jj 7143MHZ; 75133MHZ;8125MHZ;10P100MHZ(CL=2);10S100MHZ(CL=3)10100MHZ(PC100)1 HY57V651620B TC-75SDRAM 3.3V, 64M, 133MHZ.2) HY57V653220B TC-7SDRAM 3.3V, 64M, 143MHZ.524. AT 1. 2 3 4 5 6 1 2 3 4 5 6 PG5V 5V 12V -12V GND GND GND GND -5V 5V 5V 5V8. ATX 1 2 3 4 5 6 7 8 9 10 3.3V 3.3V GND 5V GND 5V GND 5V 5V 12V 11 12 13 14 15 16 17 18 19 20 3.3V -12V GND 5V GND GND GND -5V 5V 5V:141514POWERON5VPOWER GOOD5VSB69. 184 DDR 1. SCL CDA VCC=2.5v GND2. GND GND VCC3. 4. VCC DQM5. GND 6. GND 7. VCC 8. VCC DQM9. CLK VCC10. GND 11. VCC12. VCC 13. GND DQM14. GND CS15. VCC 16. VCC 17. GND 18. GND DQM19. VCC 20. VCC GND1. VCC2. GND3. GND GND4. VCC CLK5. VCC 6. GND 7. GND DQM8. VCC 9. VCC10. GND 11. GND 12. VCC DQM13. VCC 14. GND15. VCC16. VCC CKE17. VCC 18. GND CLK DQM19. CLK VCC VCC 20. GND721. GND VCC2223 VCC=2.5v GND 24 DQM25 GND VCC 26 GND22. 1IC 2DMADMA3RS-232 PC45RAMPC6CPUI/O /7CPU/8RAS/CAS/910I/O I/O 111260%35%85%23. 1235VGND3001001TTLLS5V5V2 3 I/O5V12V12V5V12V4I/OI/OI/O519267CPUI/O24. CPU-1I2C-I2CInter-IC10 PhilipsI2CI2C-2SPI-SPIserial peripheral interfaceMotorola Motorola MCUSPI68 MCUSPISPICPU10-3SCI-SCIserial communication interfaceMotorola UARTMCS-51-1ISA-ISAindustrial standard architectureIBM 1984PC/AT AT XT8/16 80286 80486 ISAISA98 -2EISA-EISA1988 Compaq9 ISAISA98 98 ISAEISAEISAISA-3VESA-VESAvideo electronics standard association 1992 60 VL(VESA local bus)CPUCache CPUVLCPUVL32 64 33MHz 132MB/sCPU386SX386DX486SX486DX-4PCI-PCIperipheral component interconnectIntel32 64PCIISAVESAISA 132MB/s PCIISAEISAMCAmicro channel architecture-5Compact PCI-PCSTD VME PC/104 Compact PCI-Compact PCIPCIPCIPCICompact PCIPCIPCIISASTDVMEPC/104 I/O -1RS-232-C-RS-232-CEIAElectronic Industry AssociationRS232 CRS-232-C25 RS-232-C5075 10015030060012002400480011960019200 RS-232-C2500pF150pF/m15mRS-23220m-2RS-485-RS-485 RS-485200mV RS-485RS-485RS-485 32 32-3IEEE-488-IEEE-488 IEEE-488 IEEE-488 15 20 500KB/s1MB/s-4USB-USBuniv