>> g >>ƬCC
g--ƬCC
ӋC̎(CPU)惦I/Oӿ·ɿЙCBһwQӋC ƬC̎(CPU)惦I/Oӿ·rһKоƬQƬӋCQƬC Ҫ^e (1) ͨCCPUҪ̎lչҪ@̎ӋٶȺ;ȵMһ ƬCҪеĔͼ̎ԆƬCĔܱ̎ͨCҪһЩӋٶȺ;ҲҪһЩ (2) ͨCд惦MYҪᘌ惦CPUĴȡٶ ƬCд惦ĽMY^惦оƬֱӒچƬCĿCPU惦xֱַ팤ַ惦Ԫ惦Čַgһ㶼64 KB (3) ͨCI/OӿҪ]˜O(CRT˜IPӡCӲPP) ƬCI/OӿڌHÑṩcOBӵÑOBҪOӋwĽӿ·쾚Ľӿ·OӋgӋC̎(CPU)惦I/Oӿ·ɿЙCBһwQӋC KC-JXSY47ƬCCö˼ܘgȫ֧16λCԭcӿڼgƬCϵy_lcϵyԶ˼ܘg֧֧32λ8038616λ8086/8088ϵ̎MCS-5196ϵІƬCCPUģKɰÑM`ܛ֧օRZԺCZԵԴc{ԇּ֧ĴȴOӿоƬķǾx֧X86INT 21h{M㌍ģʽͱoģʽCԭcӿڵČ CĿ CԭOӋ ϵyJR DQ ʮMƔDQʮMƔ ʮMƔDQʮMƔ aDQ ASCIIaַDQʮMƔ ʮMƔDQASCIIa ASCIIaַDQʮMƔ ʮMƔDQASCIIa ʮMƔASCIIaDQBCDa ʮMBCDaDQMƔ \̌ Mpȼӷ\ ʮMƵBCDap\ ˷\ ֧OӋ ѭhOӋ ӋS1233445NN1 ij^ؓĂ OӋ Wɿα ӳOӋ oֹ̖еֵСֵ N OӋ INT 21hݔݔOӋ @ʾA~Z26Ӣĸ INT 21H{ʾ CZʹINT 21h{ PCIP߶δa@ʾ IPςPCĻ@ʾ Cӿڼ䑪Ì 惦Uչ 8259Д 8259μД 8259༉Д I/OUչ8λ16λ 8255пڌ 8255 A/B/Cݔ 8255 PAݔ룯PBݔ 8255ƽͨ 8253rӋÌ 8251ͨőÌ IP輰@ʾOӋ 8279IPc@ʾOӋ 8255IPc@ʾOӋ 8237ɾDMA A/DģDQ D/AģDQ LCD 12864DҺ LED 1616c@ʾ lӌ ^ƌ M늙Cƌ ֱ늙C{ٌ DS18B20֜ضȂ V/F늉lDQ PWMݔ DS1302rr tb، ƬCĿ ƬCԭ팍 ϵyJR DQ BCDDQM MDQʮM \OӋ ֹӷ pֹo̖˷ pֹ OӋ òķ16MƔDQASCIIa ͨ^팍Fy=x2 λ ƬCɹģK ݔݔ P1I/O P1ˮ Дƌ rД ⲿД rӋ r Ӌ ͨŌ lՌ pCͨŌ ƬȿTÌ ƬEEPROMÌ ƬCӿڑÌ 惦Uչ I/OUչ 8255пڌ 8255 A/B/Cݔ 8255 PAݔ룯PBݔ 8255ƽͨ A/D 0809ģDQ D/A 0832ģDQ IPc@ʾOӋ 8279IPc@ʾOӋ 8255IPc@ʾOӋ LCD 12864Һ@ʾ LED 1616c@ʾ lӌ ^ƌ M늙Cƌ ֱ늙Cƌ DS18B20֜ضȂ ضȜy ضȿ V/FDQ PWMݔ DS1302rr犌 tb، 8251ͨŌ 8253rӋ 8259ДƌƬCC
lڣ2021/7/1 16:33:55 lϢg[1043