Computer's Interfacing Hardware ,Electronic devices and Input Output to Control System.

Hardware Resource

PC's Resource Setting
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This page has showing IRQ Setting Table,DMA(Direct Memory Access) Channel Setting Table,I/O Address Setting Table,Memory Address SettingTable,Interrupt Vector Table,Programmable Interrupt Controller Table,Mask IRQ Table for PC's user attend to referrent.

Table for PC's user attend to referrent.

IRQ

IRQ Setting Tabel

No. IRQ	Hardware
0	Computer Timer
1	Keyboard
3	Serial Port2(COM 2)
4	Serial Port2(COM 1)
5	Sound Card
6	Floppy Drive
7	Parallel Port
8	Clock
12	Mouse Port
14	Primary Hard Drive
15	Secondary Hard Drive

DMA(Direct Memory Access)

DMA Channel Setting Tabel

No. DMA Channel	Hardware
1	Sound Card
2	Floppy Drive
3	Parallel Port or Voice Modem
5	Sound Card or SCSI Card
6	Sound Card or Network Interface Card

I/O Address of mainboard computer

I/O Address Setting Tabel

No. I/O Address	Hardware
220	Sound Card
2F8	Floppy Drive
300	Network Interface Card
378	Parallel Port
3F8	Serial Port

Memory Address of mainboard computer

Memory Address SettingTabel

No. Memory Address	Hardware
C0000	Video Card
C8000	Hard Drive
D0000	Network Interface Card
F0000	BIOS

Com port parameter setting

Interrupt Vector Tabel

No. Com Port	Interrupt Vector
Com1	0x0C
Com2	0x0B
Com3	0x0C
Com4	0x0B

Programmable Interrupt Controller in setting to com port

Programmable Interrupt Controller Tabel

Com Port	Programmable Interrupt Controller
Com1(IRQ4)	0xEF
Com2(IRQ3)	0xF7
Com1(IRQ4)	0xEF
Com2(IRQ3)	0xF7

Setting parameter or cancle for interrupt sequence in communicate with com port

Mask IRQ Tabel

Com Port	Mask IRQ Value
Com1(IRQ4)	0x10
Com2(IRQ3)	0x08
Com1(IRQ4)	0x10
Com2(IRQ3)	0x08