Features: • High-performance DirectSound Direct3DSound Operation Direct Access to Audio Data as PCI Master Uses PCI Bursts with Patented Proprietary Cache RAM to Minimize PCI Bandwidth Mixes up to 64 Audio Channels at 48 kHz (Streaming Audio and/or Static Buffers) Up to Eight Audio Channels in Record Interactive Audio Includes per Channel Doppler, 4-speaker Output and Filter Audio Effects: Reverb, Chorus, Echo, Pitch Shifting, 4-band Equalizer,Surround
• Top-quality Wavetable Synthesis 16-bit Samples @ 48 kHz Sampling Rate Up to 64-voice Polyphony by Hardware Internal Computations on 28 Bits, DAC Support up to 22 Bits Alternate Loop, 24 dB Digital Filter for Each Voice Roland GS™ Format-compliant Sample Sets under Roland® License, rSounds © Roland Corporation 1996 DirectMusic™ Accelerator, Downloadable Sounds DLS1 Support, DLS2 Ready
• Multiple Audio Inputs and Outputs AC97 Codec-compliant Interface Three I2S Outputs (Six Audio Channels) Four I2S inputs (Eight Audio Channels) Home PC-ready for Dolby® AC-3 Six-speaker output Dual Joystick Game Port
• Multi-platform Windows® 95/98 Drivers Windows® 2000 WDM Drivers
• Fully Programmable Firmware Resides in PC Memory and in On-chip RAM Evolutive Firmware Open to Third-party Developers
• Designed for PC Motherboards and Notebooks 3.3V or 5V Operation Choice of Standard 100-lead PQFP or Space-saving 100-lead TQFP Package
Specifications
|
Symbol |
Parameter/Condition |
Min |
Typ |
Max |
Unit |
|
- |
Ambient Temperature (Power applied) |
-40 |
- |
+85 |
°C |
|
- |
Storage Temperature |
-6.5 |
- |
+150 |
°C |
|
- |
Voltage on any pin (except X1) |
-0.5 |
- |
VCC
+ 0.5 |
V |
|
VCC |
Supply Voltage |
-0.5 |
- |
6.5 |
V |
|
AVC3,VC3 |
Supply Voltage |
-0.5 |
- |
4.5 |
V |
|
- |
Maximum IOL per I/O pin |
- |
- |
10 |
mA |
DescriptionThe highly-integrated architecture of SAM9777 is derived from the SAM9407 but con-tains significant improvements.
The SAM9777 combines a specialized high-performance RISC-based digital signalprocessor (synthesis/DSP) and a general-purpose 16-bit CISC-based control proces-sor on a single chip. A PCI interface with bus mastering capability allows thesynthesis/DSP and the control processor to directly access external PC memory. Alocal program/data RAM, independent synthesis/DSP and control processor cacheRAM, as well as PCI transfers on a PC CPU-cache line basis allow a dramatic reduc-tion in PCI bandwidth. An intelligent peripheral I/O interface function handles other I/Ointerfaces such as controls received from the PCI interface in target mode, the on-chipMIDI UART, and three timers with minimum intervention from the control processor.
The PCI interface SAM9777 also implements a legacy joystick.
SAM9777 Data Sheet
