Intel 386 manual Figure A-2. IOPLD2 Equations Contd

Models: 386

1 307
Download 307 pages 15.07 Kb
Page 269
Image 269

LOCAL BUS CONTROL PLD DESCRIPTIONS

"10 cyclo Ilmor

,1.lo.dlagram [llmedly,wlcnI2,wlcnll,wlcnI0];

. 1 . le Id]e

if «!Iord I !Iowr I !Inlo) & clk) Ihon lim03 0150 If (!eprd & clk) Ihen IIm02

o],o,lf (!recv & clk) Ihen IIme2 ol.e Idle;

I a I e I 1m 0 7 : if clk Ihen limoS 01.0 I I me 7 ; ,10 Ie limeS: II clk I hen I 1m 0 5 el'5l!! limoS; ,1.10 limeS: If clk Ihon I 1m e 4 e I , 0 lim 0 5 ; ,1 . le I 1m e 4 : If clk I hen IIm03 01.0 I 1m 0 4 ; ,Iole Ilme3: If c] k I h 0 n I 1m 0 2 01.0 I 1m 03; ,1010 I 1m 0 2 : If c] k I hen I 1m e 1 e],o Ilm02;

. 1 . le I I mol: if clk I hen Ilmeup e] ,e I I iii e 1 ;

I . Ie IImeup: if Ii 0 r d & iowr & eprd & I n I . & clk),lhon I d] 0 e] .0 I 1m e up;

""IIIIU""""""""""II"II""""""""II"II""II"""II"II""""""1InIIIIIIUII""II"11

"bu. cyclo tracking

.Iale.dl.gram [bu.cyc,plpocyc]

,tate [1,1]: "Id]o

If (!od, & clk) Ihon [0,1] 01.0 [1, 1 ] ;

.1.10 [0,1]: "ocllve

If (!re.dy & . d, & clk) Ihon [1,1]

0] • elf (! r o. d Y & ! ad. & c I k) I hen [1, 0 ]

.1, 0 [0,1];

. 1 . le [1,0]: "plpollnod If (clk) Ihon [0,1] e I ,e [1,0];

.Ioto [0,0]: "1]legol go I 0 [1, 1 ] ;

"""""II""IIUII"""""nll""""""""II""""""""""II"IIII"""11OII"II""""IIUIIU"

Figure A-2. IOPLD2 Equations (Contd.)

A-7

Page 269
Image 269
Intel 386 manual Figure A-2. IOPLD2 Equations Contd