G1-266B-85-1.8
| Model | G1-266B-85-1.8 |
| Description | Processor Series Low Power Integrated x86 Solution |
| PDF file | Total 247 pages (File size: 4M) |
| Chip Manufacturer | NSC |
Geode™ GX1 Processor Series
Architecture Overview
(Continued)
1.7
GEODE GX1/CS5530 SYSTEM DESIGNS
A GX1 processor and Geode CS5530 I/O companion
based design provides high performance using 32-bit x86
processing. The two chips integrate video, audio and mem-
ory interface functions normally performed by external
hardware. The CS5530 enables the full features of the GX1
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.
includes the Geode CS9211 graphics companion for
designs that need to interface to a Dual Scan Super
Twisted Pneumatic (DSTN) panel (instead of a TFT panel).
typical GX1/CS5530 based system design. The CS9211
converts the digital RGB output of the CS5530 to the digital
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 GX1 processor and the CS5530. For connections to the
CS9211, refer to the CS9211 data book.
MD[63:0]
SDRAM
SDRAM
Port
YUV Port
(Video)
Clocks
Geode™
GX1
Processor
Serial
Packet
RGB Port
(Graphics)
USB
(2 Ports)
PCI Interface
CRT
3.3V PCI Bus
Speakers
Graphics Data
Video Data
CD
ROM
Audio
AC97
Codec
Geode™
CS5530
I/O Companion
Analog RGB
Digital RGB
(to TFT or DSTN Panel)
IDE Control
Micro-
phone
GPIO
Geode™
CS9211
Graphics
Companion
TFT
Panel
14.31818
MHz Crystal
Super
I/O
ISA Bus
BIOS
IDE
Devices
DC-DC & Battery
DSTN Panel
Figure 1-2. Geode™ GX1/CS5530 System Block Diagram
Revision 1.0
13
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