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Os motores de busca de Datasheet de Componentes eletrônicos |
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Os motores de busca de Datasheet de Componentes eletrônicos |
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AM85C30 Folha de dados(PDF) 4 Page - Advanced Micro Devices |
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AM85C30 Folha de dados(HTML) 4 Page - Advanced Micro Devices |
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4 / 194 page  TABLE OF CONTENTS Chapter 1 General Information 1.1 Introduction 1–3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 Capabilities 1–3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3 Block Diagram 1–5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4 Pin Functions 1–6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 Pin Descriptions 1–8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5.1 System Interface Pin Descriptions 1–8 . . . . . . . . . . . . . . . 1.5.2 Serial Channel Pin Descriptions 1–9 . . . . . . . . . . . . . . . . Chapter 2 System Interface 2.1 Introduction 2–3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2 Registers 2–3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3 System Timings 2–5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3.1 Read Cycle 2–5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3.2 Write Cycle 2–5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3.3 Interrupt Acknowledge Cycle 2–5 . . . . . . . . . . . . . . . . . . . 2.4 Register Access 2–6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 Am85C30 Enhancement Register Access 2–7 . . . . . . . . . . . . . . 2.6 Reset 2–12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chapter 3 I/O Programming Functional Description 3.1 Introduction 3–3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 Polling 3–3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3 Interrupt Sources 3–3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4 Interrupt Control 3–4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.1 Interrupt Enable Bit 3–4 . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.2 Interrupt Pending Bit 3–5 . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.3 Interrupt Under Service Bit 3–5 . . . . . . . . . . . . . . . . . . . . 3.4.4 Disable Lower Chain Bit 3–5 . . . . . . . . . . . . . . . . . . . . . . 3.5 Interrupt Operations 3–6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5.1 Multiple Interrupt Priority Resolution 3–6 . . . . . . . . . . . . . 3.5.2 Interrupt Without Acknowledge 3–8 . . . . . . . . . . . . . . . . . 3.5.3 Interrupt With Acknowledge With Vector 3–8 . . . . . . . . . . 3.5.4 Interrupt With Acknowledge Without Vector 3–10 . . . . . . . 3.5.5 Lower Priority Interrupt Masking 3–10 . . . . . . . . . . . . . . . . 3.6 Receive Interrupts 3–10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.6.1 Receive Interrupts Disabled 3–10 . . . . . . . . . . . . . . . . . . . . 3.6.2 Receive Interrupt on First Character or Special Condition 3–10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.6.3 Receive Interrupt on All Receive Characters or Special Conditions 3–11 . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.6.4 Receive Interrupt on Special Conditions 3–11 . . . . . . . . . . 3.7 Transmit Interrupts 3–12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.8 External/Status Interrupts 3–13 . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.8.1 Sync/Hunt 3–13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.8.2 Break/Abort 3–14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.8.3 Zero Count 3–14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.8.4 Tx Underrun/EOM 3–15 . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.8.5 Clear To Send 3–15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.8.6 Data Carrier Detect 3–15 . . . . . . . . . . . . . . . . . . . . . . . . . . |
Nº de peça semelhante - AM85C30 |
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Descrição semelhante - AM85C30 |
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