Nuvoton ISD1700 series Manuals

Manuals and User Guides for Nuvoton ISD1700 series. We have 1 Nuvoton ISD1700 series manual available for free PDF download: Design Manual

Nuvoton ISD1700 series Design Manual

Nuvoton ISD1700 series Design Manual (82 pages)

Brand: Nuvoton | Category: Voice Recorder | Size: 1 MB

Table of Contents

Table of Contents
2
1 General Description

6
2 Features

7
3 Block Diagram

8
4 Pinout Configuration

9
5 Pin Description

10
6 Functional Description

14
- Detailed Description
  14
  - Audio Quality
    14
  - Message Duration
    14
  - Flash Storage
    14
- Memory Array Architecture
  14
- Modes of Operations
  16
  - Standalone (Push-Button) Mode
    16
  - SPI Mode
    16
7 Analog Path Configuration (Apc)

17
- APC Register
  17
- Device Analog Path Configurations
  18
8 Standalone (Push-Button) Operations

19
- Sound Effect (SE) Mode
  19
  - Sound Effect (SE) Features
    19
  - Entering SE Mode
    19
  - SE Editing
    19
  - Exiting SE Mode
    20
  - Sound Effect Duration
    20
- Operation Overview
  20
  - Record Operation
    21
  - Playback Operation
    21
  - Forward Operation
    22
  - Erase Operation
    23
  - Reset Operation
    25
  - VOL Operation
    25
  - FT (Feed-Through) Operation
    26
- Valert Feature (Optional)
  26
- Analog Inputs
  26
  - Microphone Input
    26
  - Anain Input
    27
- System Management
  27
9 Circular Memory Architecture (Cma)

28
- Restoring Circular Memory Architecture
  30
10 Serial Peripheral Interface (Spi) Mode

31
- Microcontroller Interface
  31
- SPI Interface Overview
  31
  - SPI Transaction Format
    31
  - MOSI Data Format
    32
  - MISO Data Format
    33
- SPI Command Overview
  34
- Switching from SPI Mode to Standalone Mode
  35
- ISD1700 Device Registers
  35
  - Status Register 0 (SR0)
    35
  - Status Register 1 (SR1)
    37
  - APC Register
    37
  - Playback Pointer (PLAY_PTR)
    38
  - Record Pointer (REC_PTR)
    38
  - DEVICEID Register
    38
11 Spi Command Reference

39
- SPI Priority Commands
  41
  - PU (0X01) Power up
    41
  - STOP (0X02)
    42
  - RESET (0X03)
    42
  - Clr_Int(0X04)
    43
  - RD_STATUS (0X05)
    43
  - PD (0X07) Power down
    44
  - DEVID (0X09) Read Device ID
    45
- Circular Memory Commands
  45
  - PLAY (0X40)
    46
  - REC (0X41)
    46
  - ERASE (0X42)
    47
  - G_ERASE (0X43) Global Erase
    48
  - FWD (0X48)
    48
  - CHK_MEM (0X49) Check Circular Memory
    49
  - RD_PLAY_PTR (0X06)
    50
  - RD_REC_PTR (0X08)
    50
- Analog Configuration Commands
  51
- Direct Memory Access Commands
  54
  - SET PLAY (0X80)
    54
  - SET_REC (0X81)
    55
  - SET_ERASE (0X82)
    56
- Additional Command
  56
  - EXTCLK (0X4A)
    57
- General Guidelines for Writing Program Code
  58
- Examples of Various Operating Sequences
  59
12 Timing Diagrams

64
- Record Operation
  64
- Playback Operation
  65
- Erase Operation
  66
- Forward Operation
  67
- Global Erase Operation
  68
- Reset Operation
  68
- Looping Playback Operation
  69
- Global Erase Operation to Restore Circular Memory Architecture
  70
- Playback Operation with AUD Output
  70
- SPI Operation
  71
13 Absolute Maximum Ratings

72
- Operating Conditions
  73
14 Electrical Characteristics

74
- DC Parameters
  74
- AC Parameters
  75
15 Typical Application Circuits

76
- Good Audio Design Practices
  79
16 Ordering Information

80
17 Version History

81

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