Compaq MSB900L user manual Cmos Map

Page 31

DIGITAL-LOGIC AG

MSB900/L Detailed Technical Manual V1.0

CMOS Map continued...

Location

Description

 

 

 

 

 

0Eh

CMOS Location for Bad CMOS and Checksum Flags

 

Bit 7

= Flag for CMOS Lost Power

 

 

0

 

=

Power OK

 

 

1

 

=

Lost Power

 

Bit 6

= Flag for CMOS checksum bad

 

 

0

 

=

Checksum is valid

 

 

1

 

=

Checksum is bad

 

 

 

 

 

0Fh

Shutdown Code

 

 

 

 

 

 

 

 

10h

Diskette Drives

 

 

 

 

Bits 7-4

= Diskette Drive A

 

 

0000

 

=

Not installed

 

 

0001

 

= Drive A = 360 kB

 

 

0010

 

= Drive A = 1.2MB

 

 

0011

 

= Drive A = 720 kB

 

 

0100

 

= Drive A = 1.44MB

 

 

0101

 

= Drive A = 2.88MB

 

Bits 3-0

= Diskette Drive B

 

 

0000

 

=

Not installed

 

 

0001

 

= Drive B = 360 kB

 

 

0010

 

= Drive B = 1.2MB

 

 

0011

 

= Drive B = 720 kB

 

 

0100

 

= Drive B = 1.44MB

 

 

0101

 

= Drive B = 2.88MB

 

 

 

 

 

11h

Reserved

 

 

 

 

 

 

 

12h

Fixed (Hard) Drives

 

 

 

Bits 7-4

= Hard Drive 0, AT Type

 

 

0000

 

=

Not installed

 

 

0001-1110

=

Types 1-14

 

 

1111

 

= Extended drive types 16-44.

 

 

 

 

 

See location 19h.

 

Bits 3-0

= Hard Drive 1, AT Type

 

 

0000

 

=

Not installed

 

 

0001-1110

=

Types 1-14

 

 

1111

 

= Extended drive types 16-44.

 

 

 

 

 

See location 2Ah.

 

 

 

 

 

13h

Reserved

 

 

 

 

 

 

 

 

14h

Equipment

 

 

 

 

Bits 7-6

= Number of Diskette Drives

 

 

00

=

 

One diskette drive

 

 

01

=

 

Two diskette drives

 

 

10, 11 =

 

Reserved

 

Bits 5-4

= Primary Display Type

 

 

00

=

 

Adapter with option ROM

 

 

01

=

 

CGA in 40 column mode

 

 

10

=

 

CGA in 80 column mode

 

 

11

=

 

Monochrome

 

Bits 3-2

= Reserved

 

 

 

Bit 1

= Math Coprocessor Presence

 

 

0

=

 

Not installed

 

 

1

=

 

Installed

 

Bit 0

= Bootable Diskette Drive

 

 

0

=

 

Not installed

 

 

1

=

 

Installed

 

 

 

 

 

 

Continued...

31

Image 31
Contents SBC MSB900/LMSB900/L Detailed Technical Manual About this Manual and How to Use ItTable of Contents 10.1 Environmental Protection Statement PrefaceTrademarks DisclaimerRecycling Information Limited Two Year WarrantyTechnical Support CE Conformity Explanation of SymbolsApplicable Documents and Standards RoHS Commitment For Your SafetyRoHS Compliant Production Process RoHS Compatible Product DesignWeee Application Swiss Association for Quality and Management Sys- tems Swiss QualityDMA Standard Features of the MSB900/LUnique Features OverviewMSB900 Block Diagram MSB900/MSB900L specifications Power Supply Specification Mass Storage SpecificationStandard AT Interfaces Specification Name Peripheral Extension SpecificationRelated Application Notes Examples of Ordering CodesMSB900/L Dimensions & DiagramsDIGITAL-LOGIC AG DIGITAL-LOGIC AG DIGITAL-LOGIC AG Board / Version Unit Tolerance Date / Author MSB800CON Part NrMm millimeter + / 0.1mm 25.10.2006 / BRR High Frequency Radiation to meet EN55022 MSB900/L Incompatibilities to a standard PC/ATAddressing PCI Devices Battery-LifetimeBUS Signals External battery assembling for the MSB900LVersion Date Status Modifications This Bios history is not for the following productsDetailed System Description Power RequirementsBoot Time Test environment for power consumption measurementInterfaces CPU, Boards and RAMsInterrupt Controllers ControllersSerial Ports COM1-COM2 Floppy Disk InterfaceRTC Real Time Clock Timers and CountersProgrammable Timers ROM-BIOS SocketsMap Bios Cmos SetupCmos RAM Map DeviceCmos Map Cmos Map Bit = Internal IDE Controller Disable Password Bits = Reserved 34h Minor CPU Revision Eeprom saved Cmos SetupMemory & I/O Map Eeprom Memory for SetupSystem Memory Map Addr Function Size Comment System I/O mapIf KEL Memory Offset 100h0 = LPC MSB900/L Detailed Technical Manual MapMSR bit enables/disables into I/O VGA/LCD Controller of the Geode LX900 Resolution Col. Dept FrequencyGraphic Modes Flat cable Description of the ConnectorsConnector Structure Pin Remarks Video InputTop view of the MSB900/L Bottom view of the MSB900/L Pin Signal Power Supply Pin Signal Shield Power supplyX14 X15 Operator Panel / Flat Panel bottom side GND Lvdsclkam Lvdsclkap GND LVDSYAP0 LVDSYAM0GND LVDSYAP1 LVDSYAM1 GND LVDSYAP2 LVDSYAM2X34 10/100 BASE-T Interface Connector Pin Signal X31 Keyboard PS/2 and Mouse Utility ConnectorConnector and Adapter Mini- DIN PS/2 6 PC Remarks X33 10/100 BASE-T Interface Connector Pin Signal CATX50 USB 1 Connector Dual-USB Pin Signal Remarks X39 Serial Port COM2 Header onboard SUB connector SignalX51 USB 2 Connector Dual USB Pin Signal Remarks X52 USB Udoc not assembled X60 IDE Interface Pin SignalPin Power supply GND Dlag boards have them as NC not connected X110 LPC-Port X101 PCI-104 BUS Interface PinX301 VGA Monitor CRT-Signals 15pins High-Density DSub Pin X230 JTAG-Port Pin SignalTCK TMS TDI TDO Jumpers on MSB900/L Reload Default Bios SettingsDisabled Jumper Locations on the BoardDIGITAL-LOGIC AG Hard Disk Cable 44pin Cable InterfacesPin Signal LPT1 25pin D-Sub female Pin Signal COM1 9pin D-Sub maleCOM1/LPT Serial Interface Cable COM2 Serial Interface Cable Pin Signal COM2 9pin D-Sub maleThermal Analysis for Case Integration Thermal SpecificationsMHz Uin MSB900/L Assembly ViewsDIGITAL-LOGIC AG Mechanical Dimensions Combined standard Dhcp and redirection services PXE-BOOT and PXE-SETUP in the BiosSeparate standard Dhcp and redirection services DIGITAL-LOGIC AG CHF PXE-LICENSE OrderProduct Currency Circle one MPC20 USDEMI / EMC Bios CmosCmos DramSQS ROM-BIOS RTCUdoc USB VGA

MSB900, MSB900L specifications

The Compaq MSB900 and MSB900L are noteworthy entries in the realm of personal computing, particularly for their cutting-edge features and innovative technologies that defined their era. Positioned as versatile desktop solutions, both models have garnered attention for their robust performance and user-friendly design.

The Compaq MSB900 is equipped with a powerful processor that enhances multitasking efficiency. Its architecture supports a range of demanding applications, making it suitable for both professional and everyday use. Users can expect a seamless experience whether working on complex spreadsheets or engaging in casual gaming.

In terms of memory, the MSB900 boasts expandable RAM options, allowing users to enhance their system's capabilities as needed. The availability of multiple RAM slots provides flexibility for upgrades, ensuring the system can keep pace with future software requirements. Storage solutions in the MSB900 include high-speed hard drives, which contribute to fast boot times and robust data retrieval.

The MSB900L variant steps up the performance with additional features tailored for power users. It incorporates advanced graphics capabilities, offering superior visual experiences for gaming and multimedia applications. The dedicated graphics card provides a substantial boost in rendering performance, making it a worthy choice for graphic designers and video editors.

One of the standout characteristics of the MSB900 and MSB900L is their commitment to connectivity. Both models come equipped with a wide array of ports, ensuring compatibility with various peripherals. This includes USB ports for modern devices, Ethernet ports for wired networking, and legacy connections for older technology, catering to a diverse user base.

Energy efficiency is another key feature of these models. Designed with power-saving technologies, the Compaq MSB900 and MSB900L aim to reduce energy consumption without compromising performance. This focus not only helps to lower operating costs but also aligns with growing consumer preferences for environmentally conscious products.

In summary, the Compaq MSB900 and MSB900L offer a compelling combination of performance, expandability, and connectivity. Their innovative features and user-friendly design make them suitable for a wide range of users, from casual consumers to professional power users. As a testament to Compaq’s legacy, these models continue to be regarded as reliable choices in the personal computing landscape.