For I/O??????
IRQ Default Function I/O Address
0 System Timer 40h
1 Keyboard 60h
2 Cascade -
3 Default COM2 (external modem), COM4 2F8h, 2E8h
4 Default COM1, COM3 3F8h, 3E8h
5 LPT2 / Sound card * 278h
6 Floppy drive 3F0h
7 LPT1 378h
8 Real time-clock 70h
9 Cascade / USB -
10 Open for use -
11 Open for use -
12 PS/2 mouse * -
13 Math coprocessor F0h
14 Primary hard drive controller 1F0h
15 Secondary hard drive controller 170h
Is that all the I/O i need to know?
0 System Timer 40h
1 Keyboard 60h
2 Cascade -
3 Default COM2 (external modem), COM4 2F8h, 2E8h
4 Default COM1, COM3 3F8h, 3E8h
5 LPT2 / Sound card * 278h
6 Floppy drive 3F0h
7 LPT1 378h
8 Real time-clock 70h
9 Cascade / USB -
10 Open for use -
11 Open for use -
12 PS/2 mouse * -
13 Math coprocessor F0h
14 Primary hard drive controller 1F0h
15 Secondary hard drive controller 170h
Is that all the I/O i need to know?
A+
Comments
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longshot
Member Posts: 68 ■■□□□□□□□□
I think this is gonna be a hard part for me. The numbers seem to run together. I will just keep memorizing and doing the self test.
Webmaster: www.longshotdesigns.com
Stunters Digital Artwork (It's halfway up now) -
lazyart
Member Posts: 483
i memorized the IRQs independently of the i/o addresses. I found it easier that way.I'm not a complete idiot... some parts are missing.
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longshot
Member Posts: 68 ■■□□□□□□□□
I made up a little handy laminated pocket sheet based on marzmegas post....Its helping me. I figured out a little system for the numbers that works for me. I am nailing 100 on the practice test. I will keep looking at it though so I ingrain it into my thick skull
. Webmaster: www.longshotdesigns.com
Stunters Digital Artwork (It's halfway up now)
