Details, datasheet, quote on part number: ATSAM9708
CategoryMultimedia => Audio => Synthesizers => Dream Sound Synthesis
TitleDream Sound Synthesis
Description128-voice Integrated Sound Synthesizer
CompanyATMEL Corporation
DatasheetDownload ATSAM9708 datasheet
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Features, Applications

­ Two 64-voice RISC DSP Cores ­ Two High-speed CISC Control Processor ­ Versatile Programmable Digital Audio Routing Between the Two DSPs Voices Can Be Allocated for Synthesis and/or Effects and/or Audio Processing Maximum Single-shot PCM Wavesize of 4M Samples (93 Seconds @ 44.1 kHz) Samples Can Be Stored in 16-bit Floating Point Format (20-bit Dynamic), 16-bit Linear, 8-bit Linear Standard Audio Processing Firmware Includes Equalizer, Surround, MPEG Audio Decoder (Level 2) Sophisticated Built-in Cache Memories ­ Allows Use of Standard ns 16-bit ROMs/RAMs ­ Guarantees Crisp Response Even Under Heavy Traffic Conditions GS® Sound Set(1) under License from Roland® Corporation, Other Sound Sets Available 16-channel Audio-in, 16-channel Audio-out @ 22 Bits Audio/Channel 28-bit Internal Audio Path Two Serial MIDI-In, Two Serial MIDI-Out Firmware/Wavetable Data Can Reside in ROM, DRAM, SDRAM to 256M Bytes of External Memory with Support of SIMM (DRAM) and DIMM (SDRAM) High-speed 16-bit Burst Transfer for Firmware Download or Streaming Audio Compatible with ATSAM9707, Uses Proven Design and Development Tools ­ Sound Editor, Sound Bank Editor ­ Algorithm Compiler, Assembler, Source Debugger ­ Direct Development from PC Environment, No Special Emulator Required Top Technology ­ Single Low-frequency Crystal and Built-in PLL ­ 3.3V Supply, 5V-tolerant I/Os ­ Space-saving 144-lead TQFP Package ­ Power-down Mode Typical Applications: Karaokes, High-range Multimedia, Classical Organs, Digital Pianos, Professional Keyboards, Musical Samplers 1. The GS Sound Set is subject to special licensing conditions. Not to be used for musical instruments.


The a 128-voice integrated synthesizer, integrating two PDSP blocks and a memory management unit (MMU). One PDSP block is a combination of a specialized 64-slot RISC-based digital signal processor (DSP), a general-purpose 16-bit CISC-based control processor (P16), a cache memory and an "intelligent" peripheral I/O interface. Both PDSPs are fully independent and share the same external memory through the MMU.

16-bit CISC Processor Core Includes x 16 Data RAM x 16 Boot ROM

Name GND VCC1 VCC2 Pin Count Type PWR Function Power Ground. All GND pins should be returned to digital ground. Core Power, +3.3V nominal to 4.5V). All VC3 pins should be returned to +3.3V. Pad (except Memory Pad) Power, to +5.5V. All VCC pins should be returned to +5V (or 3.3V in case of single 3.3V supply). Memory Pad Power, to +5.5V. All VCC pins should be returned to +5V (for RAM or DRAM) or 3.3V (for SDRAM or 3.3V ROM).

Function 16-bit data bus to host processor. Information on these pins is: 2 x parallel MIDI (MPU-401 type applications) 2 x high-speed burst data transfers to/from external memory Selects one of 8 internal registers: 1: MPU-401 register processor 2, 3: Burst data (16-bit) processor MPU-401 register processor Burst data (16-bit) processor #2 Chip select from host, active low. Write from host, active low. Read from host, active low. Open drain output buffer. Driven low during 16-bit burst mode transfers to synchronize host to the ATSAM9708 memory. Open drain output buffer; driven low during 16-bit burst mode transfers. Indicates to host that a 16-bit I/O is in progress. Tri-state output pin, active high. Can be connected directly to host PC_IRQ line.

1. ISA bus group pins are powered by VCC1 power rail. 2. PC_D pads have 4 mA drive capabilities; other output pads have 16 mA drive capabilities. 3. To interface with PC ISA bus, VCC1 should be connected to 5V power and PC_D bus should be buffered. Direction is given by PC_RD signal. 4. Pin Names in this document exhibiting an overbar (PC_CS for example) indicates that the signal is active low.


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