ARM7TDMI 查看數據表（PDF） - Unspecified

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ARM7TDMI

General-Purpose 32-Bit Microprocessors

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Preface

Timing diagram conventions

The key provided in Figure P-1 explains the components used in timing diagrams. Any

variations are labeled when they occur. Therefore, no additional meaning must be

attached unless specifically stated.

Shaded bus and signal areas are undefined, so the bus or signal can assume any value

within the shaded area at that time. The actual level is unimportant and does not affect

normal operation.

Clock

HIGH to LOW

Transient

HIGH/LOW to HIGH

Bus stable

Bus to high impedance

Bus change

High impedance to stable bus

Figure P-1 Key to timing diagram conventions

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ARM DDI 0029G

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