Radio Shack TRS-80 Service Manual page 107
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Also See for TRS-80:
- Reference manual (274 pages) ,
- User manual (236 pages) ,
- Service manual (199 pages)
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NOTE 1
WRIT( CURRUH
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--NOTE
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t.--
800
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1--~:'--+--"'-+--:---:----i----7:-
...
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'NTER........
WRlll8USY
f';WR'TfDAU,
WI\lT(
_VHOR'"
GENERATOR
, • 0
.2!ilI MI\.lISECONOS APTER 00''''( MOTl)fl
STARTS OR XI MILLISECONDS
"~TER
... ",51 STEP
PULSE. (WHICHEvER IS THE "'ATEST TIME 1
UNS'f/+CHIlQN'ZEo
8s ...... 'EAo( TO PEAl<;
... SECONDS M'NIMU",".
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SECO ..
os
MAXIMUM
FIGURE 6. WRITE TIMING DIAGRAM
• NOTE 1
LINEAR OUTPUT FROM FILTER
OUTPUT FROM OIFFERENTIATOR
READ DATA INTERFACE
t
NOTES;
t =
0 "'250 MILLISECONDS AFTER DRIVE MOTOR STARTS,
OR 20 Ml LLiSECONDS AFTER STEP COMMAND, OR
100 u SECONDS AFTER TERMINATION OF WRITE
BUSY. (WHICHEVER IS THE LATEST TIME)
FIGURE 7. READ TIMING DIAGRAM
100
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