User manual
DIGITAL-LOGIC AG    MSB900/L Detailed Technical Manual V1.0 
15 
Mass Storage  Specification 
FD  Floppy disk interface not supported 
HD  E-IDE interface, AT-type, for max. 2 hard disks, 44pin connector, 
for 1.3, 1.8 and 2.5" hard disk with 44 pins IDE 
Standard AT Interfaces:  Specification 
Name  FIFO  IRQs  Addr.  Standard  Option 
Serial  COM1 
COM2 
yes 
yes 
IRQ4 
IRQ3 
3F8 
2F8 
RS232C 
RS232C 
  COM1/2 available on headers onboard. 
For DSub-connectors, option MSB800-CON is needed. 
SuperIO Chip  W83627HF from WINBOND 
Parallel  LPT1 printer interface mode: SPP (output), EPP (bidir.)
Keyboard  AT or PS/2-keyboard 
Mouse  PS/2 
Speaker  No speaker 
RTC  Integrated into the chipset, RTC with CMOS-RAM 256Byte 
Backup current 
<5 µA 
RTC-backup MSB900  Onboard 3.6Volt Lithium 400mAh available 
RTC-backup MSB900L  External connection, no onboard battery available 
BUS  Specification 
PCI/104  PCI 32Bit Bus, 1 slot 
Clock  33MHz defined by the GEODE 
USB  Specification 
USB  2.0 
Transfer rate  480MBps, 12.5MBps / 1.5MBps 
Channels  4 
Peripheral Extension  Specification 
ISA  Not supported 
PCI MSB900  With PCI/104 BUS (1 slot), limited I/O space 
PCI MSB900L  Not available 
Power Supply  Specification 
Working 
8-32Volt ± 5% (peak 36Volt) 
Power Rise Time  Unspecified 
Power consumption  MSB900/L with HD, MS/KB (PS/2), CRT Monitor 
Windows XP Desktop: type 8.5-10W 
Standby power consumption  MSB900/L: 
Windows Standby: 2.5W (without MS/KB wakeup function) 
Windows Standby: 4.5W (with PS/2 wakeup function) 
Physical Characteristics  Specification 
Dimensions  Length: 146 mm 
Depth:  102 mm 
Height:   20 mm 
Weight  160g 
PCB Thickness  1.6mm / 0.0625 inches nominal 
PCB Layer  Multilayer 










