Toshiba 8000 Tecra 8000 Users Guide - Page 244
DMA channel assignments
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UPC - 032017021280
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220 System Resources IRQ Use Notes 6 3.5-inch diskette drive 7 LPT1 COM port, modem, ECP, sound system, or MPU* 8 Real-time clock 9 Not Available Reserved for system 10 Available COM port, sound system, MPU, modem 11 External PCI bus Modem, sound system, FIR, or MPU* 12 PS/2 mouse 13 Math coprocessor 14 Hard disk CD-ROM, secondary hard disk 15 CD-ROM CD-ROM, SelectBay * MPU401 in Desk Station V Plus, if available. DMA channel assignments Direct Memory Access (DMA) allows some devices to transfer data to and from memory at high speeds, without using the CPU. Such devices are each assigned a unique DMA channel. The computer has two DMA controllers with four channels on each controller, a total of eight DMA channels. Part III: Appendixes
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Part III: Appendixes
System Resources
220
* MPU401 in Desk Station V Plus, if available.
DMA channel assignments
Direct Memory Access (DMA) allows some devices to transfer
data to and from memory at high speeds, without using the CPU.
Such devices are each assigned a unique DMA channel. The
computer has two DMA controllers with four channels on each
controller, a total of eight DMA channels.
6
3.5-inch diskette
drive
7
LPT1
COM port, modem, ECP, sound system, or
MPU
*
8
Real-time clock
9
Not Available
Reserved for system
10
Available
COM port, sound system, MPU, modem
11
External PCI bus
Modem, sound system, FIR, or MPU
*
12
PS/2 mouse
13
Math coprocessor
14
Hard disk
CD-ROM, secondary hard disk
15
CD-ROM
CD-ROM, SelectBay
IRQ
Use
Notes