Cirrus Logic CS485xx manuales

Cirrus logic CS485xx Manual de usuario (23 paginas)

Marca: Cirrus-logic | Categoria: Hardware | Tamaño: 0.34 MB |

Inglés

Tabla de contenidos

CS485xx Family Data Sheet

1

DS734F5 2

2

TABLE OF CONTENTS

3

LIST OF FIGURES

4

LIST OF TABLES

4

1 Documentation Strategy

5

2 Overview

5

3 Code Overlays

6

4.1 DSP Core

7

4.2 On-chip DSP Peripherals

7

4.3 DSP I/O Description

8

5.1 Absolute Maximum Ratings

9

10 DS734F5

10

11 DS734F5

11

12 DS734F5

12

C Slave Mode

13

C Master Mode

14

DAI_SCLK

15

DAI_DATAn

15

Parameter Symbol Min Max Unit

16

DAO_SCLK

17

DAO_LRCLK

17

DAOn_DATAn

17

6 Ordering Information

18

8 Device Pinout Diagrams

19

AI2_DATA0

20

48-Pin LQFP

21

9 Package Mechanical Drawings

22

10 Revision History

23

Cirrus logic CS485xx Manual de usuario (102 paginas)

Marca: Cirrus-logic | Categoria: Hardware | Tamaño: 1.69 MB |

Inglés

Tabla de contenidos

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

1.3.9 DMA Controller

16

1.3.10 Internal Timers

16

1.3.11 Watchdog Timer

16

1.3.12 Clock Manager and PLL

16

Introduction

19

2.3 Slave Boot Procedures

20

2.3.1 Slave Boot

21

Slave Boot Procedures

22

2.3.2.1 Slave Boot Procedure

23

2.3.3 Boot Messages

24

2.5 Softboot

26

2.5.2.1 Softboot Steps

27

2.5.2.2 Softboot Example

27

Softboot

28

CS485xx to begin

28

Mnemonic Value

30

Send .uld from Table 2

31

Chapter 3

33

Serial Control Port

33

3.1 Introduction

33

3.2.1 I

34

3.2.2 I

35

C System Bus Description

35

3.2.2.1 I

36

C Bus Dynamics

36

Figure 3-4. I

37

C Address with ACK and NACK

37

3.2.2.2.1 SCP_BSY Behavior

39

3.2.2.3.1 I

40

C Write Protocol Procedure

40

Figure 3-9. I

42

C Read Flow Diagram

42

3.2.2.4.1 I

43

C Read Protocol Procedure

43

3.2.2.4.2 SCP_IRQ Behavior

43

M S S M S M S M S M M

44

3.3 SPI Port

45

3.3.1.1 SPI Bus Dynamics

47

3.3.1.1.1 SCP_BSY Behavior

48

3.3.1.2 SPI Messaging

49

SPI Port

50

4.2.1 DAI Pin Description

56

DAI1_DATA0

57

DMA to Peripheral Bus

57

DAI1_DATA1

57

DAI2_DATA0

57

DAI1_DATA2

57

4.2.3 Digital Audio Formats

59

A - Data Format

60

B - SCLK Polarity

60

C - LRCLK Polarity

60

D - DAI Mode (Unsupported)

61

E - DAI2_DATA Clock Source

61

F - DAI1_DATA Clock Source

61

G - Chip Version

61

H - Chip Version

61

DAI Hardware Configuration

64

Chapter 5

65

Chapter 6

67

6.1 Introduction

67

DAO1_DATA3, XMTA

68

DAO_MCLK

68

DAO_SCLK

68

DAO_LRCLK

68

6.2.3 DAO Interface Formats

70

6.2.5 S/PDIF Transmitter

75

0x8100001e

76

0x00005080

76

Chapter 7

77

7.1 System Clocking Controls

77

XTAL_OUT Divide-by-2

78

Chapter 8

79

8.1 Introduction

79

8.2 GPIO Description

79

Watchdog Timer Description

80

Typical Connection Diagrams

81

Figure 9-2. I

83

Figure 9-3. I

84

Figure 9-4. I

85

9.2 Pin Description

90

9.2.2 PLL Filter

91

9.3 Clocking

92

9.4 Control

92

9.4.1 Operational Mode

93

48-Pin LQFP Pin Assigments

94

Pin Assignments

100

Revision Date Changes

101

Revision History

102

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