Toshiba T4850CT Detailed specs for T-Series T4850CT - Page 4

T4850CT (continued) System Memory Map: Address Range '00000000' '0009FFFF' '000A0000' '000BFFFF' '000C0000' '000C7FFF' '000C8000' '000CFFFF' '000D0000' '000DFFFF' '000E0000' '000E7FFF' '000E8000' '000EFFFF' '000F0000' '000FFFFF' '00100000' '007FFFFF' '00800000' '017FFFFF' '01800000' '0182FFFF' '01830000' '07FEFFFF' '07FF0000' '07FFFFFF' Space (Kilobytes) 640 128 32 32 64 32 32 64 7,168 16,384 192 64 Used For: Conventional Memory Video RAM Video BIOS ROM (Shadow RAM) Reserved (PNP Work RAM) Reserved Reserved Backup RAM System BIOS ROM (Shadow RAM) System working memory Optional working memory The rest of system working memory Memory expansion in expansion port System BIOS ROM (duplicated) Interrupts Interrup Level Assigned To: t -- NMI I/O Channel check 0 Timer (channel 0) 1 Keyboard 2 PIC #2 1 3 COM 2 4 COM 1 5 Reserved 6 Floppy disk 7 Printer 1 or Windows Sound System 2 8 RTC 9 Software Redirect to INT 0Ah or *Windows Sound System 10 *Windows Sound System 11 *Windows Sound System 12 PS/2 mouse 13 Math Co-processor 14 Hard disk 15 Reserved *: Select one IRQ level from 7, 9, 10, or 11 in the Windows Sound System SETUP program. DMA channels DMAC Channel Assigned To: 0 *Windows Sound System #1 1 *Windows Sound System 2 Floppy disk 3 *Windows Sound System #2 4 Cascade for DMAC #1 5 Reserved 6 Reserved 7 Not Used *: Select one DMA level from 0, 1, or 3 in the Windows Sound System SETUP program. Toshiba America Information Systems Inc. ("TAIS") shall not be liable for damages of any kind for use of this information, which is subject to change without notice. Copyright 1994 TAIS. 4850.DOC Rev. 3 09/24/96 MQC/nmm Page 1 of 5