| ??? 09/04/06 10:56 Read: times |
#123635 - 8051 vs 8052 Responding to: ???'s previous message |
Sender Jones said:
I like to mention one point about my mis-understanding. If you take a look at the 8052 tutorial in this site, it reads:
"The 80 bytes remaining of Internal RAM, from addresses 30h through 7Fh, may be used by user variables that need to be accessed frequently or at high-speed. This area is also utilized by the microcontroller as a storage area for the operating stack..." It should also mention the trick of pointing the SP to indirect addressing space (>80h) I think you're referring to the "Standard 8051 Tutorial"? http://www.8052.com/tutmemor.phtml#Internal%20RAM The point here is that the 8051 has only 128 bytes of internal RAM; the extra 128 bytes were added in the 8052 - see the "8052 Tutorial" http://www.8052.com/tut8052.phtml Unfortunately, the terms "8051" and "8052" do tend to be used somewhat indiscriminately these days, so these distinctions can often be lost... But Well Done! this shows that you are reading, and thinking about what you've read! Keep it up! |
| Topic | Author | Date |
| Newbie need help | 01/01/70 00:00 | |
| 8052 Magic | 01/01/70 00:00 | |
| stack overlay on SFR | 01/01/70 00:00 | |
| You are missing... | 01/01/70 00:00 | |
| Same address, different circuits | 01/01/70 00:00 | |
| Confused?! | 01/01/70 00:00 | |
| peculiarities | 01/01/70 00:00 | |
| link | 01/01/70 00:00 | |
| Thanks. | 01/01/70 00:00 | |
| 8051 vs 8052 | 01/01/70 00:00 | |
understatement of the year | 01/01/70 00:00 |