8272

SEEK OPERATION

 

050,1

==x

STABLE

tl..._____

 

 

-I.us 1_

I-'STU-I

 

 

.------+----.....:;1 'su -

 

RW/SEEK

1

I

\' -----

 

 

-I"J:-

-1,---'oS1-

 

LCT/DIRECTION

----~X

1

X

 

 

----'J'=1=""1,",1-"-----

 

STEP

 

n

~

 

 

-I·ST.I-

.sel-I

 

FLT RESET

 

 

INDEX

FAULTRESET~

 

 

FILE UNSAFE RESET

~I

';\,.

 

 

 

-----'-.,R-I'-----

 

 

 

 

FDD READ OPERATION

 

 

J\

 

n

 

READ DATA _I I+-'--.-Ro-o----I=----.w-Ro-----JII~-::...--.R-ow-::...----I--

 

 

 

I

LI

 

READ DATA WINDOW _______---'X

 

 

 

---- twWCy ----

 

 

NOTE: EITHER POLARITY DATA WINDOW IS VALID.

 

TERMINAL COUNT

 

RESET

 

 

H

 

n

 

TC ----- '" L -

RESET~ ~

 

 

-I I-'Te

 

 

A.C. TIMING MEASUREMENT CONDITIONS

INPUT WAVEFORM

2. 4V --VV-

O.4SV --A'--______A--

MEASUREMENT POINT

INPUT: 2.0V ro O.8V

OUTPUT: 2.0V ro O.8V

9-66

Page 381
Image 381
Intel mcs-48 manual Sel-I, Timing Measurement Conditions