4-18 Hardware Functional Overview
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The Maestro-2 power management complies with Advanced Power
Management (APM) 1.2, Advanced Configuration and Power Interface
(ACPI) 1.0, and PCI Power Management Interface (PPMI) 1.0.
Features Summary of the Maestro-2:
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500-MIPS-equivalent processor performance to accelerate multi-stream
PC audio
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64-Voice wavetable synthesizer
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Proprietary WaveCache technology
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HRTF 3D positional audio under DirectX 5.0
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Enhanced effects (reverb, chorus, echo, vibrato, etc.)
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Distributed and PC/PCI DMA, Compaq/Intel serial IRQ support and
Transparent DMA
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AC-3 speaker virtualization
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2-Button hardware master volume control
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I2S/Zoomed Video Support
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AC'97 CODEC interface
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Up to 20-bit ADC/DAC audio resolution
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Complies with Microsoft's ACPI 1.0 and PPMI 1.0 (D0~D3)
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3.3V power supply, 5V - input tolerant
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Supports up to 12 GPIO pins
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Secondary CODEC interface
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100-Pin TQFP package
Keyboard and Pointing Device
The Keyboard Subsystem of the notebook is implemented on the Motherboard
and Keyboard Assembly using the Mitsubishi 38867M8 keyboard controller
chip and the Phoenix MultiKey/M3886L keyboard controller firmware. This
chip controls the internal built-in keyboard, the built-in touchpad pointing
device, as well as the external PS/2 keyboard and mouse port. The keyboard
controller allows simultaneous use of both the internal and external keyboard
and PS/2 mouse.
The Versa Note Series membrane keyboard is an 86-key IBM 101-key enhanced
compatible keyboard with standard characters and 12 function keys including an
embedded numeric keypad. See Chapter 1 for more information.