Commodore 8250LP - IX. CONTROL AND DATA TIMING REQUIREMENTS

IX. SUGGESTED GENERAL CONTROL/DATA TUII0iG REQUIRDiE.'ITS
P07.-ER ON
lOOms (Min)
~ ____________________________________ ~1~~1 ________ _
MOTOR ON --------.1
L._~ ___________________________ --,}~} ________ __
1<
I I
DRIVE SELECT -------.....,
L- ______________________________________ ~~~}---------
VALID TROO M'D -, ~ 500as (Max)
----~I
V~.PROT.OUT I~' ----------------------------~»~----------
I Ims "
SIDE SELECT---~--~------------~
(Min) I
~ ____________ ~~~J----~
;---"-- l;.:s (Min)
l I
DlRECTION---~-----~
I I I 1 ms ,( I
)) I
l.c:s 2;.rs (Min) 30;.rs (M.in) I I
~l----~,~(Min) r
STEP---------------~
(Min)
2=
(Minj
2ms
~--~~------~'~
! 18ms (:>1-in) I I
I
I 8;.rs (Me .. ;;:)
WRITE GATE---------------------------~
(Min) (Min) I
DELAIED
WRITE GATE
EXPANDED
VvR ITE GATE
500ns(Min)
I I I
100;.r s '-----------;/~
~ f' ~--..,.-;;..
!430us ,-- __ I 870,c:s
I
l..------'~\ I I
I
i I
wRITE DATA -----------------------~- I"" ulJlJ
Ii :- ----'--- ~.~~:c(~:{/nn: --,-;----iLJ=8-",(M.xJ~ (\;;':;:~ 1-
VAL ID READ DATA ------------------.:..-.
I
II~ ~ I
I j- 200us (Min)
Z;ts(Max) ----
12 sec (Max jl---~
Fig. 11
(All signals are sho~n as low active)