Rainbow-electronics AT89C5132 Manual de usuario Pagina 143

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AT8xC5132
4173A805108/02
Figure 120. External 8-bit Bus Cycle Data Write Waveforms
External IDE 16-bit Bus Cycles
Definition of Symbols Table 132. External IDE 16-bit Bus Cycles Timing Symbol Definitions
Timings Test conditions: capacitive load on all pins = 50 pF.
T
WHLH
T
AVWL
T
LLAX
T
WHQX
P2
P0
WR
ALE
T
LHLL
T
WLWH
A15:8
T
AVLL
T
QVWH
D7:0
Data Out
T
LLWL
A7:0
Signals Conditions
A Address H High
D Data In L Low
LALE VValid
Q Data Out X No Longer Valid
RRD
ZFloating
WWR
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