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System Memory Map
Same as T5200 (refer to that section)
I/O Port Assignment
Port Address
From / To
'000' / '01F'
'020' / '03F'
'040' / '05F'
'060' / '06F'
'070' / '07F'
'080' / '09F'
'0A0' / '0BF'
'0C0' / '0DF'
'0E0' / '0EF'
'0F0' / '0F7'
'0F8' / '1EF'
'1F0' / '1F7'
'200' / '207'
'208'
LIM Set 0 Page Register
'209' / '217'
'218'
LIM Set 1 Page Register
'219' / '257'
'258'
LIM Set 5 Page Register
'259' / '267'
'268'
LIM Set 6 Page Register
'279' / '2F7'
'2F8' / '2FF'
'300' / '337'
'338' / '33F'
'340' / '377'
'378' / '37F'
'380' / '3AF'
'3B0' / '3DF'
'3E0' / '3EF'
'3F0' / '3F7'
'3F8' / '3FF''
'X000' / 'X00F'
For T8500 I/O card
'4010' / '401F'
For T8500 I/O card
'40D0' / 40DF'
For T8500 I/O card
'8010' / '801F'
For T8500 I/O card
'8080' / '808F'
System Control Register and Status
'80D0' / '80DF'
17-inch CRT
'C010' / 'C01F'
T8500 System Control
'C0D0' / 'C0DF'
For T8500 I/O card
'X020' / 'X03F'
For T8500 I/O card
'X0A0' / ' X0CF'
For T8500 I/O card
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.
Device / Function___________
82C37A : DMA Controller 1
82C59A : Interrupt Controller 1
82C54 : Timer
8042/8742: Keyboard Controller
RTC & NMI
DMA Page Register
82C59A : Interrupt Controller 2
82C37A : DMA Controller 2
Reserved
NPX Error Reset
(Reserved)
HDC port
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
SIO Port 2 or Toshiba modem
SCSI adapter (MB89352)
SIO Port 3
(Reserved)
Printer Port 1
(Reserved)
BGS/HRGS Ports
(Reserved)
FDC/FDD Interface
SIO Port (1, 2, Modem card
8500.DOC Rev. 1 06/03/94 MQC/nmm.
Page 2
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