Bài Thảo Luận Về Mạch Điều Khiển Số Liệu 8250 Và 8251

BÀI THẢO LUẬN NHÓM 1
ĐỀ BÀI : MẠCH ĐIỀU KHIỂN SỐ LIỆU
8250,8251
Sinh viên thực hiện:
Lê Trọng Dũng
Nguyễn Đình Hải
Trần Duy Thắng
Vũ Trọng Đức
MẠCH ĐIỀU KHIỂN TRUYỀN SỐ LIỆU
Khái quát
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!"#$%&"#'!()*!'+,-
.
/$01234*5+))6)*7828 78
))59%772$3:5+;2<
#"#!)=!*6<(-$!*6
+8>8/=?2)2 mode register<@2=-8/
3)2! command register)/=<
A62-%&38B9)
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12("#!I
JKLFMJ)/52!K55L//)/F25N/O
J@LFMJ)/52!@5L//)/F25N/OI78$
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J@KLF=/JKLF2J@LFRS
TUV5MTWU//%V!5O78$P8
J##5MJ)/52!#2-#!5O=!*6XY!
$MJKLFJ@LF2TUV5O
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/8 78.[=3XZ=33Q

)P@FKLF8VKL"F\8)@FUV8'<
]^2-*%^!JKLF)J@KLF=3XZ323Q
!_2)X2!!_3!!_B%`2/M`2/O)!_
7*3Q*M)//O<C_B%`2/=?2!523(3Q

)P@FKLF83,5+@FUV8'<=?2!
3Q3,*X)(X!<C_7*3Q
=
?2!3Q*3,8);9!QS23a2%^!12
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d573+12JKLF68$6Y<e<fg.2 >==8+
2-:1I2-)P8);9!Q2-2-)2-
3802M2%523/!/`2/O<
#C@"JKLF)J@KLF3,6+-<]12
.38f8;9!Q=%GH)'%8;9!Q
F,h<i2-)P8;9!Q!2-%&3+JKLF))B;9!Q
g#VJM#/2!V/55JO<j/6Y<e.2 >2-82
785%^!2kW8MblbmO)Yh3#@Lb)nL<
F X%^!^2JKLF)#VJ%o2H285%^!k8<]2=59
%85!%^!p(12JKLF)); %^!2(12
=<#!,-3[H2^2#VJ)JKLF<A'%qB
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%&h368$6Y<r<F)'%2=
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. Giao ếp truyền có thể lập trình UART 8250 của Intel
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Xung đồng hồ và sự định thời gian:
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8$2h+)P2<#(5+;BfgjFKC•52=H2
2(M=!*6O2(5+:771<F(5+

2+82%S•~!(<F'771%&38$

k€rl52)=!)/^(5+32<
F(5+:77122fgTKJbUFS(5+777
7362)gL#C}{%&&(5+6+2g
!)P2<#[=;9!Q(5+7712(5+;77
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.Cấu trúc bên trong và hoạt động của 8250
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hMC/@25L/5/O2*%0H""LM"/
"%/-„2-L/5/O2E0H"wLM"/w28!/L/5/O2
3%/d#LMd%/#!L/5/O2F]LMF255N/
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