NSAM265SR Datasheet, PDF (3/58 Pages) National Semiconductor (TI) – CompactSPEECH Digital Speech Processors

Table of Contents
1 0 THEORY OF OPERATION
1 1 Overview
1 2 The State Machine
1 3 Command Execution
1 4 Tunable Parameters
1 5 Messages
1 5 1 Message Tag
1 6 ARAM Support
1 7 FLASH Support
1 7 1 Block Erasure
1 7 2 FLASH Endurance
1 7 3 Memory Operating Modes in NSAM265SF
1 8 Tone and No-Energy Detection
1 9 Speech Synthesis
1 9 1 Explanation of Terms
1 9 2 Internal Vocabulary
1 9 3 External (International) Vocabularies
1 10 Initialization
2 0 FUNCTIONAL DESCRIPTION
2 1 Introduction
2 2 Resetting
2 3 The Serial Microwire Interface
2 3 1 Signal Description
2 3 2 Signal Use in the Interface Protocol
2 3 3 Interface Protocol Error Handling
2 4 CODEC Interface
2 5 DRAM ARAM Access (NSAM265SR)
2 5 1 Refreshing a DRAM ARAM
2 6 DRAM ARAM Specifications (NSAM265SR)
2 7 DRAM ARAM Configurations (NSAM265SR)
2 8 FLASH AFLASH Access (NSAM265SF)
2 9 FLASH AFLASH Specifications
2 10 FLASH AFLASH Configurations
2 11 IVS Access
2 12 Clocking
2 13 Power-Down Mode
2 14 Power and Grounding
3 0 COMMAND SET
3 1 Commands Summary
3 2 Commands Description
APPENDIX A
DEVICE SPECIFICATIONS
A 1 Pin Assignment
A 2 Absolute Maximum Ratings
A 3 Electrical Characteristics
A 4 Switching Characteristics
APPENDIX B
SCHEMATIC DIAGRAMS
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