Cirrus Logic CS485 podręczniki

Cirrus logic CS485 Instrukcja Użytkownika (102 strony)

Marka: Cirrus-logic | Kategoria: Karty dźwiękowe | Rozmiar: 1.69 MB |

Angielski

Spis treści

CS485xx

1

Contents

3

Chapter 1

9

1.1 Overview

9

Overview

10

1.2 Code Overlays

13

1.3.1 DSP Core

14

1.3.2 Debug Controller (DBC)

14

1.3.10 Internal Timers

16

1.3.11 Watchdog Timer

16

1.3.12 Clock Manager and PLL

16

1.3.9 DMA Controller

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Introduction

19

2.3 Slave Boot Procedures

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2.3.1 Slave Boot

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Slave Boot Procedures

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2.3.2.1 Slave Boot Procedure

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2.3.3 Boot Messages

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2.5 Softboot

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2.5.2.1 Softboot Steps

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2.5.2.2 Softboot Example

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Softboot

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CS485xx to begin

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Mnemonic Value

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Send .uld from Table 2

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Chapter 3

33

Serial Control Port

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3.1 Introduction

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3.2.1 I

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3.2.2 I

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C System Bus Description

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3.2.2.1 I

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C Bus Dynamics

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Figure 3-4. I

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C Address with ACK and NACK

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3.2.2.2.1 SCP_BSY Behavior

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3.2.2.3.1 I

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C Write Protocol Procedure

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Figure 3-9. I

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C Read Flow Diagram

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3.2.2.4.1 I

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C Read Protocol Procedure

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3.2.2.4.2 SCP_IRQ Behavior

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M S S M S M S M S M M

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3.3 SPI Port

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3.3.1.1 SPI Bus Dynamics

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3.3.1.1.1 SCP_BSY Behavior

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3.3.1.2 SPI Messaging

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SPI Port

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4.2.1 DAI Pin Description

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DAI1_DATA0

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DMA to Peripheral Bus

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DAI1_DATA1

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DAI2_DATA0

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DAI1_DATA2

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4.2.3 Digital Audio Formats

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A - Data Format

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B - SCLK Polarity

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C - LRCLK Polarity

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D - DAI Mode (Unsupported)

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E - DAI2_DATA Clock Source

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F - DAI1_DATA Clock Source

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G - Chip Version

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H - Chip Version

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DAI Hardware Configuration

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Chapter 5

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Chapter 6

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6.1 Introduction

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DAO1_DATA3, XMTA

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DAO_MCLK

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DAO_SCLK

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DAO_LRCLK

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6.2.3 DAO Interface Formats

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6.2.5 S/PDIF Transmitter

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0x8100001e

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0x00005080

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Chapter 7

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7.1 System Clocking Controls

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XTAL_OUT Divide-by-2

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Chapter 8

79

8.1 Introduction

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8.2 GPIO Description

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Watchdog Timer Description

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Typical Connection Diagrams

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Figure 9-2. I

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Figure 9-3. I

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Figure 9-4. I

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9.2 Pin Description

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9.2.2 PLL Filter

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9.3 Clocking

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9.4 Control

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9.4.1 Operational Mode

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48-Pin LQFP Pin Assigments

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Pin Assignments

100

Revision Date Changes

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Revision History

102

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