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T6600C, T6600C/CD, T6600C/CDV
System Memory Map
Address range
'00000000'
0009FFFF'
000A0000'
000BFFFF'
000C0000'
000C7FFF'
000C8000'
'000EFFFF'
'000F0000'
'000FFFFF'
'00100000'
'007FFFFF'
'00800000'
'017FFFFF'
'01800000'
'0183FFFF'
'01840000'
'0FFFEFFF'
'FFFF0000'
'FFFFFFFF'
Interrupts
Interrup
Level
t
--
NMI
0
1
2
1
3
4
5
6
7
8
9
2
10
11
12
13
14
15
*: These assignments are controlled by special registers.
Special assignments on systems with preinstalled software
Sound System IRQ = 9 (set in Control Panel, Drivers, Windows)
MediaShare Mambo card IRQs (set in C:\Windows\AVK.INI)
Toshiba built-in SCSI = 11 (set in C:\DOS\TSETUP.EXE)
PCMCIA IRQ = 15 (when used, set in enabler software)
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.
Space
(Kilobytes)
Used For:
640
Conventional memory
128
Video RAM
32
VGA BIOS ROM
(Shadow RAM)
32
Reserved or SCSI BIOS ROM
64
(Shadow RAM)
64
64
System BIOS ROM
(Shadow RAM)
7,168
System working
memory
16,384
256
The rest of system
working memory
Memory expansion in
expansion slot
64
System BIOS ROM
(Duplicated)
Assigned To:
RAM Parity Error; I/O Channel Error
Timer
Keyboard
PIC 2 for levels 8 to 15
*SIO from exp. bus pin-B25
*SIO from exp. bus pin-B24
From exp. bus pin-B24
FDC, from exp. bus pin-B22
PRT, *Sound system from exp. bus pin-B21
RTC
*Sound system, *SCSI from exp. bus pin-B04
*Sound system, *SCSI from exp. bus pin-D03
*Sound system, *SCSI from exp. bus pin-D04
*Sound system, *SCSI from exp. bus pin-D05
Math coprocessor
HDC, from exp. bus pin-D07
From exp. bus bin-D06
Audio = 10
Video = 10
SCSI = 10
Ethernet = 5 (when used)
Copyright 1994 TAIS. 6600.DOC Rev. 3 09/24/96 MQC/nmm
(continued)
Page
11
of 5
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