Architecture Overview (Continued)
1.7.1 Reference Designs
As described previously, the GXLV series of integrated
processors is designed specifically to work with National’s
Geode I/O and graphics companion devices. To help
define and drive the emerging information appliance mar-
ket, several reference systems have been developed by
National Semiconductor. These GXLV processor based
reference systems provide optimized and targeted solu-
tions for three main segments of the information appliance
market: Personal Internet Access, Thin Client, and Set-
top Box. Contact your local National Semiconductor sales
or field support representative for further information on
reference designs for the information appliance market.
Control
Geode™
GXLV
SDRAM
Processor
Data
NSC
LM4549
Codec
PCMCIA
PCI Bus
Embedded OS
Applications
Bootloader
Run-Time Diagnostics
Storage
Embedded OS
Applications
Linear
Flash
(8 MB)
Flash
Bootloader
Card
RF Interface
ISA Bus
Run-Time Diagnostics
Optional
Storage
Geode™
Ultra DMA/33
USB Port
CS5530
I/O
Companion
Geode™
CS9210/11
Graphics
Companion
Buttons
Pwr Mgmt
DC Sense
DSTN
Microcontroller
Backlight
Touch
Control
Li Batteries/
Charger
512 KB DRAM
Figure 1-6. Example WebPAD™ System Diagram
www.national.com
16
Revision 1.1
NSC [ National Semiconductor ]
