MAS3504D

MICRONAS MAS 3504D G.729 Annex A Voice Codec Edition Nov. 7, 2001 6251-522-1DS MICRONAS MAS 3504D Contents Page 4 4 5 5 5 6 6 6 6 6 6 6 6 6 7 7 8 8 8 8 9 9 10 10 10 11 11 12 12 12 13 13 14 14 14 14 14 15 15 15 16 16 16 16 17 Section 1. 1.1. 1.2. 1.2.1. 1.2.2. 2. 2.1. 2.2. 2.2.1. 2.2.2. 2.3. 2.4. 2.5. 2.5.1. 2.5.2. 2.5.3. 2.5.4. 2.6. 2.6.1. 2.6.2. 2.6.3. 2.6.3.1. 2.6.3.2. 2.6.4. 2.6.5. 2.6.5.1. 2.6.5.2. 3. 3.1. 3.1.1. 3.2. 3.2.1. 3.3. 3.3.1. 3.3.2. 3.3.3. 3.3.4. 3.3.5. 3.3.6. 3.3.7. 3.4. 3.5. 3.5.1. 3.5.2. 3.5.2.1. Title Introduction Features Application Overview Decoder Mode Encoder Mode Functional Description of the MAS 3504D DSP Core Firmware (Internal Program ROM) G.729 Encoder G.729 Decoder Program Download Feature Clock Management Power Supply Concept Internal Voltage Monitor DC/DC Converter Stand-by Functions Start-up Sequence Interfaces Parallel Input Output Interface (PIO) Parallel Data Output Parallel Data Input DMA Handshake Protocol End of DMA Transfer Audio Input Interface (SDI) Audio Output Interface (SDO) Example 1:16 Bits/Sample (I2S Compatible Data Format) Example 2:32 Bit/Sample (Inverted SOI) Control Interfaces I2C Bus Interface Device address and Subaddresses Command Structure Conventions for the Command Description Detailed MAS 3504D Command Syntax Run Write Register Write D0 Memory Write D1 Memory Read Register Read D0 Memory Read D1 Memory Version Number Register Table DC/DC Converter (Reg. 8Ehex) User Control (Reg. FDhex) Data Transmission Format 2...