微机原理大作业.pdf
微机原理大作业基于 8086 最小方式系统总线完成电路设计及编程：1、扩展 16K字节的 ROM 存储器，起始地址为：0 x10000；A1A13U31098765432524212323M/IO274S00+5V2022271A0A1A2A3A4A5A6A7A8A9A10A11A12CEOEPGMVPP2764偶片D0D1D2D3D4D5D6D71112131516171819U1:AA161U2A19A17A15A14OR_31098765432524212322022271+5VD0D15U4A0A1A2A3A4A5A6A7A8A9A10A11A12CEOEPGMVPP2764奇片奇片D0D1D2D3D4D5D6D71112131516171819RD2、扩展 16K字节的 RAM 存储器，起始地址为：0 xF0000；A1A13A1A2A3A4A5A6A7A8A9A10A11A12A13109876543252421232U3A0A1A2A3A4A5A6A7A8A9A10A11A12CECSWEOE6264偶片D0D1D2D3D4D5D6D71112131516171819D0D1D2D3D4D5D6D7U2A0NOTU1A19A18A17A16M/IO20+5V2627221Y01Y11Y21Y32Y02Y12Y22Y376549101112U512151C1E2C2EAB74LS155U4A1A2A3A4A5A6A7A8A9A10A11A12A13109876543252421232A0A1A2A3A4A5A6A7A8A9A10A11A12CECSWEOE6264奇片D0D1D2D3D4D5D6D71112131516171819D8D9D10D11D12D13D14D15NAND_5A14A1514133BHEWRRDD0D1520+5V2627223、设计一片 8259 中断控制器，端口地址分别为：0 x300，0 x302；D15D8U3A9A8U11819202122232425IR0D0.7IR1CSIR2WRIR3RDIR4A0IR5SP/ENIR6IR7INTCAS0.2 INTA825912327161726WRRDA1+5VINTRINTAU2NANDM/IOOR_3U4A7A2A0OR4、设计一片 8253 定时控制器，端口地址分别为：0 x320，0 x322，x324，0 x326；U6A8U7NOTA9NOTU3U8ORNOTA8A7A14A1591011124072A4A3OR_6A5U9U5:B13A10A11A12A132345U4:A14072U2876543212223A1A2192021D0D1D2D3D4D5D6D7RDWRA0A1CS8253ACLK0GATE0OUT0CLK1GATE1OUT1CLK2GATE2OUT291110151413181617U121222418313023173319RESET AD0.15READY A16.19INTA/QS1INTRALE/QS0HOLD/GT1BHEHLDA/GT0DT/R/S1TESTDEN/S2NMIRDMN/MXWR/LOCKCLKM/IO/S08086253427263229285、设计一片 8255 并行接口，端口地址分别为：0 x221，0 x223，x225，0 x227；U6A5U3U7NOTA9NOTA14A15A8A7A6A4A3OR_8ORU99101112U5:B134072A10A11A12A132345U4:A14072U2D8D9D10D11D12D13D14D15343332313029282753698356D0D1D2D3D4D5D6D7RDWRA0A1RESETCSPA0PA1PA2PA3PA4PA5PA6PA7PB0PB1PB2PB3PB4PB5PB6PB7PC0PC1PC2PC3PC4PC5PC6PC78255A43214039383718192021222324251415161713121110U121222418313023173319RESET AD0.15READY A16.19INTA/QS1INTRALE/QS0HOLD/GT1BHEHLDA/GT0DT/R/S1TESTDEN/S2NMIRDMN/MXWR/LOCKCLKM/IO/S0808625342726322928A1A06、设计外部连接电路实现通过8253 每一秒钟产生周期中断信号，并利用该信号通过 8259 向 8086 处理器发送中断请求，利用该中断同步，8086 处理器周期的从 8255 并行接口输入 8位开关量的值，并存入到 RAM 的某个地址中。A0A2A3A4A5U4OR_5U18A12U5U19OEWECSCEA12A11A10A9A8A7A6A5A4A3A2A1A0222726+5V20223212425345678910A13AND_2A15A14A7A6A11A10A9A8OR_81819202122232425U3OR_3D7D6D5D4D3D2D1D01918171615131211D7D6D5D4D3D2D1D06264+5VU2IR0D0.7IR1CSIR2WRIR3RDIR4A0IR5SP/ENIR6IR7INTCAS0.2INTA825912327161726A0U211211109224275+5V266207223212425345678910BA2Y32Y22Y12Y01Y31Y21Y11Y074LS1552E2C1E1C313141521AND_5U23A0NOT21222418313023173319U1RESETAD0.15READYA16.19INTA/QS1INTRALE/QS0HOLD/GT1 BHEHLDA/GT0DT/R/S1TESTDEN/S2NMIRDMN/MX WR/LOCKCLKM/IO/S08086R1R2R3R4R510k 10k 10k 10k 10kU20OEWECSCEA12A11A10A9A8A7A6A5A4A3A2A1A0U22A19A18A17A16U2425342726322928U12D0D1D2D3D4D5D6D7A15A14343332313029282753698356NOT+5VA11A10A8A6A9A4A3A0D0D1D2D3D4D5D6D7RDWRA0A1RESETCSPA0PA1PA2PA3PA4PA5PA6PA7PB0PB1PB2PB3PB4PB5PB6PB7PC0PC1PC2PC3PC4PC5PC6PC78255ANOT43214039383718192021222324251415161713121110NOTD15D14D13D12D11D10D9D81918171615131211D7D6D5D4D3D2D1D06264U14U15OR_4A5A1A2U7D0D1D2D3D4D5D6D787654321222319A220A121D0D1D2D3D4D5D6D7RDWRA0A1CS8253ACLK0GATE0OUT0CLK1GATE1OUT1CLK2GATE2OUT291MHz+5V1110151413181617A13A12U13A9U16R610kR710kR810k+5VNOTU17U6OR_8OR_4U11+5VU10OR_3A5A4A3A0A15A14A13A12A11A10A7A6U8U9OR_4A8A9NANDOR_87、请编写实现上述功能的完整的汇编程序代码，包括主程序及中断服务程序，在主程序中需要完成中断向量表的初始化(假定 8259 采用 8086的 30 号中断进行同步，中断服务程序段的标号为：INT30_ISR)，8259，8253（假定外部能有的时钟源为 1MHz）及 8255的初始化；在中断服务程序实现从 8255 中输入开关量并存储到 RAM 的某个地址中。MODELSMALL.DATACNTDB 0000HINT-TBLSEGMENTAT 0ORG30*4DDINT30_ISRINT-TBL ENDAPORTEQU221HBPURTEQU223HCPURTEQU225HCONTREQU227HTIME_1 EQU320HTIME_2 EQU322HTIME_3 EQU324HCONTR_8253 EQU 326HMPORT0 EQU300HMPORT1 EQU302HRAM1EQU10000HRAM2EQUF0000H.CODE.STARTUPMOVAL,90HMOVDX,CONTROUTDX,ALMOVAL,14HMOVDX,CONTR_8253OUTDX,ALMOVAL,54HMOVDX,CONTR_8253OUTDX,ALMOVAL,94HMOVDX,CONTR_8253OUTDX,ALMOVAL,64HMOVDX,TIME_1OUTDX,AL;中断向量表;8255地址;8253 地址;8259 地址;定义 8255A工作方式 A组方式 0 输入;定义 8253计数器 0工作方式方式 2;定义 8253计数器 1工作方式方式 2;定义 8253计数器 2工作方式方式 2;将外部能有的时钟源为 1MHz转换为 1sMOVAL,64HMOVDX,TIME_2OUTDX,ALMOVAL,64HMOVDX,TIME_3OUTDX,ALLOOP1:JMPLOOP2;主程序进入无限循环，等中断LOOP2:JMPLOOP1.exit;中断程序部分INT30_ISR：CLT;8259A 关中断MOVAL,13H;ICW1OUTMPORT0,ALMOVAL,0C7H;ICW2OUTMPORT1,ALMOVAL,01HOUTMPORT1,ALMOVDX,APORTINAL,DXCMPCNT,4000HJBCASE1CMPCNT,8000HJBCASE2JMPCASE3CASE1 MOVDX,CNT+RAM1;第一块 RAM未写满OUTDX,ALJMPCNT_INCCASE2MOVDX,CNT+RAM2-40000H;第一块 RAM写满，第二款 RAM未写满OUTDX,ALJMPCNT_INCCASE3MOVDX,RAM1;两块 RAM写满OUTDX,ALMOVCNT,0JMPCNT_INCCNT_INC:INC CNTMOVDX,RAM1OUTDX,ALSTI;开中断END
