User manual
DIGITAL-LOGIC AG MSM800SEV/SEL/BEV/XEV/XEL Detailed Manual V1.5
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4.3.4. DDRAM Memory on MSM800XEV/XEL................................................................................ 39
4.4. Interfaces ...................................................................................................................................... 39
4.4.1. AT Compatible Keyboard & PS/2 Mouse X31....................................................................... 39
4.4.2. Line Printer Port LPT1 ........................................................................................................... 40
4.4.3. Serial Ports COM1-COM2 ..................................................................................................... 40
4.4.4. Floppy Disk Interface............................................................................................................. 40
4.4.5. Speaker Interface .................................................................................................................. 41
4.5. Controllers .................................................................................................................................... 42
4.5.1. Interrupt Controllers............................................................................................................... 42
4.6. Timers and Counters ................................................................................................................... 42
4.6.1. Programmable Timers ........................................................................................................... 42
4.6.2. RTC (Real Time Clock) ......................................................................................................... 43
4.6.3. Watchdog............................................................................................................................... 43
4.7. BIOS............................................................................................................................................... 44
4.7.1. Core BIOS download............................................................................................................. 44
4.7.2. ROM-BIOS Sockets............................................................................................................... 45
4.7.3. BIOS CMOS Setup ................................................................................................................ 45
4.8. CMOS RAM Map ........................................................................................................................... 45
4.9. EEPROM saved CMOS Setup...................................................................................................... 51
4.9.1. EEPROM Memory for Setup ................................................................................................. 52
4.10. Memory & I/O Map ........................................................................................................................ 52
4.10.1. System Memory Map............................................................................................................. 52
4.10.2. System I/O Map ..................................................................................................................... 53
5. VGA/LCD ...................................................................................................................57
5.1. VGA/LCD Controller of the Geode LX800 .................................................................................. 57
5.2. Graphic Modes ............................................................................................................................. 57
5.3. DVICON Resolution...................................................................................................................... 57
5.4. Flat Panel Functional Description .............................................................................................. 58
6. DESCRIPTION OF THE CONNECTORS................................................................................59
6.1. Top Side of the MSM800SEV/SEL V2.1/V2.2.............................................................................. 60
6.2. Bottom Side of the MSM800SEV V2.1/V2.2................................................................................ 61
6.3. Top Side of the MSM800BEV V1.1 .............................................................................................. 62
6.4. Top Side of the MSM800XEV/XEL V1.0 ...................................................................................... 63
7. JUMPER LOCATIONS ON THE BOARD ..............................................................................74
7.1. The Jumpers on MSM800SEV V2.1 ............................................................................................ 74
8. CABLE INTERFACES ......................................................................................................79
8.1. The Hard Disk Cable 44pin.......................................................................................................... 79
8.2. The COM 1/2 Serial Cable ............................................................................................................ 80
8.3. The Printer Cable.......................................................................................................................... 81
8.4. The Micro Floppy Cable............................................................................................................... 82
8.5. The LAN Cable (RJ45).................................................................................................................. 83
9. THERMAL SPECIFICATIONS ............................................................................................84
9.1. Thermal Analysis for Case Integration ...................................................................................... 84
10. ASSEMBLY VIEWS .....................................................................................................85
10.1. MSM800SEV/SEL V2.1/V2.2......................................................................................................... 85
10.2. MSM800BEV V1.1 ......................................................................................................................... 87
10.3. MSM800XEV/XEL V1.0 ................................................................................................................. 89
11. PREVIOUS PRODUCT VERSIONS..................................................................................91
11.1. Board Dimensions – Versions 1.0 / 1.1 / 1.2 .............................................................................. 91
11.2. Assembly Views ........................................................................................................................... 92
11.2.1. MSM800SEV/SEL V1.1......................................................................................................... 92
11.2.2. MSM800 V1.2 ........................................................................................................................ 96
11.3. Connectors and Jumpers of Previous Product Versions ...................................................... 100
11.3.1. Description of the Connectors for V1.0 /V1.1 /V1.2............................................................. 100
12. INDEX .....................................................................................................................109