Toshiba T-Series T1000 - System Memory and I;O Mapping; System Memory Map; Interrupt Assignments; I;O Port Assignments

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. 1000.DOC Rev. 2 12/07/95 MQC/nmm.
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64K 10000
128K 20000
192K 30000
256K 40000 512 System Working
320K 50000 Memory
384K 60000
448K 70000 ________________
512K 80000 128 Expanded Memory
576K 90000 Specification_____
640K A0000 64 DOS ROM_______
704K B0000 32 (Reserved)______
736K B8000 16 Video RAM______
752K BC000 32 (Reserved)
768K C0000 ________________
784K C4000 Expanded Memory
832K D0000 176 Specification
896K E0000 ________________
960K F0000 32 (Reserved)_______
992K F8000 32 System (BIOS) ROM
Interrupts
Level Assigned To: Level Assigned To:
NMI None 4 Primary Communications
0 Timer 5 (Reserved)
1 Keyboard 6 FDD
2 (Reserved) 7 Parallel Printer
3 Secondary Communications
I/O Port Assignment
Port Address
From / To Device / Function
'000' / '01F' 82C37 : DMAC Device
'020' / '03F' 82C59 : PIC Device
'040' / '05F' 82C53 : PIT Device
'060' / '07F' 82C55 : PPI Port
'080' / '09F' DMA Page Register
'0A0' / '0BF' NMI Mask Register
'0C0' / '0CF' DOS ROM Register
'0D0' / '0EF' Special Register
'208' / '20F' Expanded Memory Unit I/O - 1
'218' / '21F' Expanded Memory Unit I/O - 2
'258' / '25F' Expanded Memory Unit I/O - 3
'268' / '26F' Expanded Memory Unit I/O - 4
'2A8' / '2AF' Expanded Memory Unit I/O - 5
'2B8' / '2BF' Expanded Memory Unit I/O - 6
'2C0' / '2DF' Real Time Clock
'2E8' / '2EF' Expanded Memory Unit I/O - 7
'2F8' / '2FF' Secondary Communications (COM2)
'378' / '37F' Parallel Printer
'380' / '3AF' Binary Synchronous Communications
'3D0' / '3DF' Display
'3F0' / '3F7' Floppy Disk Controller
'3F8' / '3FF' Primary communications (COM1)