Dell PP01S User Manual

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Dell PP01S User Manual Manual pdf 120 page image

IRQ6 Generated by the diskette drive controller to indicate that the diskette drive requires the attention of themicroprocessorIRQ7 Parallel port; available if parallel port is disabledIRQ8 Reserved; generated by the real time clockIRQ9 SCI in ACPI modeIRQ10 PCI IRQA, B, C, DIRQ11 AvailableIRQ12 Reserved; generated by the keyboard controller to indicate that the output buffer of the touch pad orPS/2 mouse is fullIRQ13 Reserved; generated by the math coprocessorIRQ14 Reserved; generated by the hard-disk drive to indicate that the drive requires the attention of themicroprocessorIRQ15 Reserved; generated by the CD-ROM or DVD-ROM drive in the external media bay to indicate that thedrive requires the attention of the microprocessorMemory AllocationsTable 3 provides a map of the conventional memory area. When the microprocessor or a program addresses a location within the conventional memoryrange, it is physically addressing a location in main memory.NOTE: To view memory allocations in Windows 95 and Windows 98, click the Start button, point to Settings, and click Control Panel.Double-click the System icon. Click the Device Manager tab, and then double-click Computer.Table 3. Conventional Memory MapAddress Range Use0000h-003FFh Interrupt vector table00400h-004FFh BIOS data area00500h-005FFh MS-DOS® and BASIC work area00600h-9FBFFh User memoryTable 4 provides a map of the upper memory area. Some of these addresses are dedicated to various system devices, such as the system/video basicinput/output system (BIOS). Others are available for use by expansion cards and/or an expanded memory manager (EMM).Error Messages, IRQs, and Memory Assignments: Dell Latitude LS Portable Computers User's Guidefile:///C|/Documents and Settings/Administrator/Desktop/New Web/Documentation/LS/LS User's Guide/error.htm (5 of 7) [5/31/2000 9:49:18 AM]