Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

speed of computer components

Status
Not open for further replies.

swapnil_vlsi

Full Member level 1
Joined
Jul 18, 2007
Messages
95
Helped
7
Reputation
14
Reaction score
5
Trophy points
1,288
Activity points
1,900
can any body tell me why PCI Bus is used????

is becoz of speed ...

which device is faster pci bus ,bridge ,memory or externel peripheral..

i hav hav confusion abt PCI

my consideration is that PCI works at 33 M Hz ...and peripheral have much higher speed then memory so for synhronization PCI is used???


and how speed get synchronozed??is by PCI Bus or Bridge do this??
 

mta97e

Member level 1
Joined
Aug 14, 2007
Messages
37
Helped
4
Reputation
8
Reaction score
0
Trophy points
1,286
Activity points
1,543
no no no no..

u r not confuse about PCI.. you dont know about PCI..

yes PCI works at 33Mhz, it also works at 66MHz
 

echo47

Advanced Member level 5
Joined
Apr 7, 2002
Messages
3,942
Helped
637
Reputation
1,272
Reaction score
88
Trophy points
1,328
Location
USA
Activity points
33,183
In common PC computers, the system memory is usually much much faster than the peripherals and PCI bus. Depending on the particular PCI clock rate (33, 66, 100, or 133 MHz) and bus width (32 or 64 bits), PCI can give you several hundred megabytes per second. However, modern PC memory can go several gigabytes per second.

The PC motherboard has a bridge chip that exchanges data between the CPU's peripheral bus and the PCI bus, and provides the necessary bus handshake and arbitration.
 

mta97e

Member level 1
Joined
Aug 14, 2007
Messages
37
Helped
4
Reputation
8
Reaction score
0
Trophy points
1,286
Activity points
1,543
i m not sure PCI works at 100 and 133 ..

PCIX works at 100 and 133
 

echo47

Advanced Member level 5
Joined
Apr 7, 2002
Messages
3,942
Helped
637
Reputation
1,272
Reaction score
88
Trophy points
1,328
Location
USA
Activity points
33,183
You're right. PCI is only 33 and 66 MHz. PCI-X provides 100 and 133.
 

swapnil_vlsi

Full Member level 1
Joined
Jul 18, 2007
Messages
95
Helped
7
Reputation
14
Reaction score
5
Trophy points
1,288
Activity points
1,900
that i know at what speed they work.......
i wanted to know that why PCI ???
to synchronize the speed between peripheral and memory??
whose speed is greater memory or peripheral???

Added after 8 seconds:



that i know at what speed they work.......
i wanted to know that why PCI ???
to synchronize the speed between peripheral and memory??
whose speed is greater memory or peripheral???
 

Status
Not open for further replies.
Toggle Sidebar

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top