Revision 1.2
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Architecture Overview (
Continued
)
G
1.7
A GXLV processor and Geode CS5530 I/O companion
based design provides high performance using 32-bit x86
processing. The two chips integrate video, audio and
memory interface functions normally performed by exter-
nal hardware. The CS5530 enables the full features of the
GXLV processor with MMX support. These features
include full VGA and VESA video, 16-bit stereo sound,
IDE interface, ISA interface, SMM power management,
and IBM’s AT compatibility logic. In addition, the CS5530
provides an Ultra DMA/33 interface, MPEG1 assist, and
AC97 Version 2.0 compliant audio.
GEODE GXLV/CS5530 SYSTEM DESIGNS
Figure 1-2 shows a basic block system diagram which
also includes the Geode CS9210 graphics companion for
designs that need to interface to a Dual Scan Super
Twisted Pneumatic (DSTN) panel (instead of a TFT
panel).
Figure 1-3 shows an example of a CS9210 interface in a
typical GXLV/CS5530 based system design. The CS9210
converts the digital RGB output of the CS5530 to the digi-
tal output suitable for driving a color DSTN flat panel LCD.
It can drive all standard color DSTN flat panels up to a
1024x768 resolution.
Figures 1-4 and 1-5 show the signal connections between
the GXLV processor and the CS5530. For connections to
the CS9210, refer to the CS9210 data book.
Figure 1-2. Geode GXLV/CS5530 System Block Diagram
YUV Port
(Video)
RGB Port
(Graphics)
PCI Interface
SDRAM
Port
MD[63:0]
PCI Bus
Graphics Data
Video Data
Analog RGB
Digital RGB
(to TFT or DSTN Panel)
CRT
TFT
Panel
USB
(2 Ports)
AC97
Codec
Speakers
CD
ROM
Audio
Micro-
phone
GPIO
Super
I/O
ISA Bus
SDRAM
Serial
Packet
Clocks
BIOS
IDE
Devices
14.31818
MHz Crystal
IDE Control
DC-DC & Battery
CS9210
Graphics
Companion
DSTN Panel
Geode
Geode
GXLV
Processor
Geode
CS5530
I/O Companion