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Chapter 1: Introduction
1-13
1-7 Versatile Media Capabilities
HighDenitionAudio
The High Denition Audio Controller embedded in the ICH9/ICH9R delivers up to
4 codecs that can be used for different types of codecs, such as audio and mo-
dem codecs. Operating at 3.3V or 1.5V, the embedded Audio Controller supports
a multi-channel audio stream, 32-bit sample depth, up to 192 kHz of same rate,
and can be used with a variety of microphones for input. With these versatile audio
capabilities built in, the C2SBA+II/C2SBA+/C2SBA/C2SBE provides the user with
a surreal audio experience that is larger than life.
I/O Virtualization Technology (VT-d)
With the Intel ICH9 built in, the C2SBA+II/C2SBA+/C2SBA/C2SBE supports I/O
Virtualization Technology (VT-d) that enables multiple operating systems and ap-
plications to run in independent partitions. Each partition uses its own subset of host
physical memory, and behaves like a virtual machine (VM), providing isolation and
protection across multiple partitions. This feature is available when a processor that
supports the virtualization of platforms is installed on the motherboard.
1-8 Super I/O
The disk drive adapter functions of the Super I/O chip include a oppy disk drive
controller that is compatible with industry standard 82077/765, a data separator,
write pre-compensation circuitry, decode logic, data rate selection, a clock genera-
tor, drive interface control logic and interrupt and DMA logic. The wide range of
functions integrated onto the Super I/O greatly reduces the number of components
required for interfacing with oppy disk drives. The Super I/O supports two 360 K,
720 K, 1.2 M, 1.44 M or 2.88 M disk drives and data transfer rates of 250 Kb/s,
500 Kb/s or 1 Mb/s.
It also provides two high-speed, 16550 compatible serial communication ports
(UARTs). Each UART includes a 16-byte send/receive FIFO, a programmable baud
rate generator, complete modem control capability and a processor interrupt sys-
tem. Both UARTs provide legacy speed with baud rate of up to 115.2 Kbps as well
as an advanced speed with baud rates of 250 K, 500 K, or 1 Mb/s, which support
higher speed modems.
The Super I/O provides functions that comply with the ACPI (Advanced Congura-
tion and Power Interface), which includes support of legacy and ACPI power man-
agement through a SMI or SCI function pin. It also features auto power management
to reduce power consumption.