Functional Description
CPB904
CPB904 includes the following main functional units:
AMD Geode LX 800 500 MHz microprocessor including 32-bit x86 core,
64-bit coprocessor, 64-bit SDRAM memory bus;
256/512 MB soldered DDR SDRAM system memory,
up to 512 MB in SODIMM socket (for CPB904-03);
Flash memory based reserved BIOS, in-system modification;
Onboard NAND flash-disk, 64 MB;
IDE port with support for two UltraDMA/100 devices;
MiniSD socket;
Serial ports:
COM1, COM2: RS232, full control, maximum exchange rate – 115.2 Kbit/s;
COM3: RS232, TX/RX, for remote PC connection
One Fast Ethernet channel 10/100 Mbit/s;
Four USB 2.0 channels;
Watchdog timer;
CMOS+SFRAM for BIOS configuration storage;
Real time clock with Li battery backup;
PS/2 keyboard/mouse port;
IrDA port;
17 programmable discrete I/O channels share lines with FDD/LPT ports.
Universal parallel port supports EPP and ECP modes;
Integrated graphics controller:
Video memory up to 64 MB, shared with system;
LCD (TFT or DSTN) panels support, resolution up to 1600x1200;
Analog RGB display support;
LVDS interface
Layouts of main CPB904 components and connectors on top and bottom sides are presented in
Figures 4.2 and 4.3 respectively.
C P B 9 0 4 U s e r M a n u a l
4-2
© 2 0 0 8 F a s t w e l v . 0 0 1 E
