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SB-ATX-X255 (ATXBASE-ARM) Board                
 
 
（Top View ）
（Bottom View）
 
SB-ATX-X255 Highlights

  • Mini-ATX Single Board Computer implemented by an SB-ATX and CM-X255 module

  • Intel's XScale PXA255 CPU, up to 400 MHz

  • 16 - 64 MB SDRAM

  • 1 - 512 MB Flash Disk

  • PCI slot

  • COM1 - 4 with RS232 / RS485 / RS422 / TTL driver options

  • LPT, GPIO, PS/2 keyboard and mouse interfaces

  • Host and Slave USB ports

  • Hard and floppy disk interfaces

  • Sound I/O (optional)

  • VGA graphics controller. Connectors for  LCD panel and  CRT monitor (optional)

  • Single or dual 10/100BaseT Ethernet ports (optional)

  • Single or Dual PCMCIA and CardBus  slots (optional)

  • Power consumption below 1 W

 SB-ATX-X255 is a small single board computer with industry standard Mini-ATX form factor. It is implemented by a combination of an CM-X255 module and an SB-ATX board.

Based on Intel's XScale architecture, the SB-ATX-X255 board delivers a price / feature ratio better than any traditional X86-based alternative. SB-ATX-X255 is especially attractive for applications requiring a combination of low price and low power consumption with features such as PCMCIA and LCD Panel interfaces.

The SB-ATX-X255 has industry standard Mini-ATX form factor, providing an attractive alternative to many other ATX cards available in the market. Within CompuLab's product line, the SB-ATX-X255 is also compatible with CM-i686 and CM-i886 boards, enabling the flexibility required in a dynamic market where application requirements can change rapidly.

For more information, see Developer Resources page.

Block Diagram

* Grayed blocks specify functions not used in the SB-ATX-X255, but required by other CORE modules.

SB-ATX-X255 Features

The "BASE Option" column specifies the P/N code of SB-ATX-X255 required to have the particular feature.  The "CORE Option" column specifies the P/N code of CM-X255 required to have the particular feature. SB-ATX-X255 content is the combination of features provided by the attached CM-X255 and features implemented on the SB-ATX itself. To have the particular feature, both CORE and BASE options of that feature must be implemented.

"+" means that the feature is always available, regardless of P/N code.

Feature Specification BASE
Option		 CORE
Option
CPU
SDRAM
Flash Disk		 See Features List of CM-X255 module   　
COM 1 Full modem, RS-232 levels, DB-9 connector + +
COM 2 Rx/Tx only, RS-232 / RS-422 / RS-485 levels, 10-pin header X +
COM 3 Rx/Tx or full modem, RS-232 or TTL levels, 10-pin header Y B
COM 4 Full modem, RS-232 / RS-485 / RS-422, 10-pin header Z B,S
IrDA SIR and FIR modes. Standard header for IrDA module + +
LPT 26-pin header for DB-25 cable/connector. Shared with FDC + B,S
IDE PIO mode. Derived from local bus. 40-pin header for HDD cable + +
FDC Routed through LPT header + B,S
Ethernet One or two 10/100BaseT Ethernet ports. Realtek RTL8139 controller. RJ-45 connectors and activity LED's. Options:
- Single port
- Dual port

+
E

B,E
B,E
LCD Panel STN and TFT panel support. 51-pos FPC connector for direct interface to certain TFT panels L +
CRT Monitor RGB signals are derived from TFT interface by using DAC. Resolution up to 640 x 480.  DB-15 VGA connector. V +
PS/2 Two PS/2 connectors for keyboard and mouse + B,S
GPIO 20 lines, on 100-mil header. + B,S
PCMCIA Supports two options:
- PCMCIA only, using ARMCORE controller. Single slot.
- CardBus / PCMCIA, using additional controller. One or two slots.
Slots: with card guides, for cards type I, II and III.
CA
Cx
+
B
Host USB Two Host ports, 12 Mbps. Type-A connector.   + B
Slave USB One Slave port, 12 Mbps. Type-A connector.   + +
Sound I/O Standard connectors for Microphone (mono), Line input and Speakers (stereo) + A
PCI Single PCI slot, straight + B
RTC Real time clock, powered by on-board lithium battery + R

Electrical, Mechanical and Environmental Specifications

Power Supply 5.0V or 3.3V
(The 3.3V option is only for cards without Audio and Super-I/O chips)
Dimensions 17 x 17 x 3 cm.
Height can vary, depending on the connectors assembled. Height specified includes the ARMCORE module.
Operation temp (case)
Commercial:    0o to 70o C
Extended: -20o to 70o C
Industrial: -40o to 85o C. Click for availability note
Storage temperature -40o to 85o C
Relative humidity 10% to 90% (operation)
05% to 95% (storage)
Shock 50G / 20 ms
Vibration 20G / 0 - 600 Hz
     
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