PG1995
Active Member
Hi
I have always wondered what that GHz thing means about the processors. They say it's speed of a processor. For example, my computer used 2 GHz processor. After reading some of the stuff about 8051 I understand a little what crystal frequency, machine cycle, etc. are. So, I presume 2 GHz is crystal frequency.
As it says in the attachment that the 8051 could use crystal frequency from 4 MHz to 30 MHz. Suppose a 8051 MCU is first connected to a crystal with frequency 5 MHz and then the same MCU is connected to 30 MHz. Would there be a difference in terms of performance. For 5 MHz machine cycle would 2.4 μs and for the 30 MHz it would be 0.4 μs.
If using a higher frequency crystal really raises the performance bar, then, theoretically speaking, can I use higher frequency crystal for my PC so that it perform well?
Please keep it simple so that I can understand it. Thank you.
Regards
PG
I have always wondered what that GHz thing means about the processors. They say it's speed of a processor. For example, my computer used 2 GHz processor. After reading some of the stuff about 8051 I understand a little what crystal frequency, machine cycle, etc. are. So, I presume 2 GHz is crystal frequency.
As it says in the attachment that the 8051 could use crystal frequency from 4 MHz to 30 MHz. Suppose a 8051 MCU is first connected to a crystal with frequency 5 MHz and then the same MCU is connected to 30 MHz. Would there be a difference in terms of performance. For 5 MHz machine cycle would 2.4 μs and for the 30 MHz it would be 0.4 μs.
If using a higher frequency crystal really raises the performance bar, then, theoretically speaking, can I use higher frequency crystal for my PC so that it perform well?
Please keep it simple so that I can understand it. Thank you.
Regards
PG