| ??? 12/20/08 16:20 Read: times |
#161074 - Read doc's Responding to: ???'s previous message |
Andy Neil said:
The answer for the "standard" 8051 architecture can, of course, be found in the so-called "bible" for the 8051:
Chapter 1 - 80C51 Family Architecture: http://www.nxp.com/acrobat_d...ARCH_1.pdf Chapter 2 - 80C51 Family Programmer's Guide and Instruction Set: http://www.nxp.com/acrobat_d...UIDE_1.pdf Chapter 3 - 80C51 Family Hardware Description: http://www.nxp.com/acrobat_d...WARE_1.pdf The Datasheet for your particular device will tell you where it differs from the standard. If you search these Adobe PDF documents for the term "NOP" then you are bound to find how many clock cycles a NOP takes.... then do the math...... clock cycles are related to the Xtal oscilator frequency. Then derive a formula. Joe. |
| Topic | Author | Date |
| instruction cycle | 01/01/70 00:00 | |
| bible time? | 01/01/70 00:00 | |
| Read doc's | 01/01/70 00:00 | |
| He did | 01/01/70 00:00 | |
| Apologies | 01/01/70 00:00 | |
| bible can be incorrect | 01/01/70 00:00 | |
| "the bible" is gospel | 01/01/70 00:00 | |
| That was specifically noted | 01/01/70 00:00 | |
| understood | 01/01/70 00:00 | |
ADuC841 is a single-clocker | 01/01/70 00:00 |