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. 3100E.DOC Rev. 1 05/27/94 MQC/nmm.
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2
Interrupt controller 2 for levels 8 to 15
1
3
Secondary Communications (COM 2)
4
Primary Communications (COM 1)
5
PRT 2 or COM 3
6
FDC
7 PRT 1_________________________
8
RTC
9
Software Redirect to INT '0A'
2
10
(Reserved)
11
(Reserved)
12
(Reserved)
13
Coprocessor
14
HDC
15
(Reserved)
I/O Port Assignment
Port Address
From / To Device / Function___________
'000' / '01F'
DMA Controller 1
'020' / '03F'
Interrupt Controller 1
'040' / '05F'
Timer
'060' / '06F'
Keyboard Controller
'070' / '07F'
RTC and NMI
'080' / '09F'
DMA Page Register
'0A0' / '0BF'
Interrupt Controller 2
'0C0' / '0DF'
DMA Controller 2
'0E0' / '1EF'
Reserved
'0F0' / '0FF'
Reserved for Coprocessor
'1F0' / '1F7'
HDC
'200' / '207'
Game I/O
'208' / '208'
EMS Set0 Page Control Register
'209' / '217'
(Reserved)
'218' / '218'
EMS Set1 Page Control Register
'219' / '257'
(Reserved)
'269' / '277'
(Reserved)
'278' / '27F'
Parallel Printer Port 2
'258' / '258'
EMS Set5 Page Control Register
'259' / '267'
(Reserved)
'268' / '268'
EMS Set6 Page Control Register
'280' / '2F7'
(Reserved)
'2F8' / '2FF'
Serial Port 2 (COM 2)
'300' / '31F'
Prototype card
'320' / '337'
(Reserved)
'338' / '33F'
Serial port 3
'340' / '377'
(Reserved)
'378' / '37F'
Parallel PRT 1
'380' / '38F'
SDLC, Bisync 2
'390' / '39F'
(Reserved)
'3A0' / '3AF'
Bisync 1
'3B0' / '3BF'
MDA and PRT
'3C0' / '3CF'
(Reserved)
'3D0' / '3DF'
CGA
'3E0' / '3E7'
(Reserved)
'3E8' / '3EF'
Serial Port 3
'3F0' / '3F7'
FDC, HDC
'3F8' / '3FF'
Serial Port 1 (COM1)
