Rainbow-electronics AT89C5132 Instrukcja Użytkownika Pobierz pdf (Strona 143)

143

AT8xC5132

4173A–8051–08/02

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.

WHLH

AVWL

LLAX

WHQX

ALE

LHLL

WLWH

A15:8

AVLL

QVWH

D7:0

Data Out

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Q Data Out X No Longer Valid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

1 2 ... 138 139 140 141 142 143 144 145 146 147 148 ... 161 162

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Rainbow-electronics AT89C5132 Instrukcja Użytkownika Strona 143