| ??? 05/01/07 21:58 Read: times |
#138421 - ? Responding to: ???'s previous message |
I am by no means Winbond specialist and I did never use this chip nor any other Winbond chip, but the table at page 16 describing every bit in CHPCON and the related text and diagrams throughout the datasheet seem to be clear in the function of this register. Specifically, bit 4 of CHPCON - ENAUXRAM - is described as "1 - enable the on-chip AUX-RAM; 0 - disable the on-chip AUX-RAM". I see nothing mysterious in this.
Also, I see no other use of CHPENR than the quote above describes, in the examples. Write the given sequence into it, and you can rewrite CHPCON. Write anything else int CHPENR, and subsequent (involuntary, perhaps) writes to CHPCON are ignored. I don't understand your confusion. I don't say the datasheet is crystal clear in every little detail but which one is. Just my impression is, that it does contain the answers to your questions - except of course to the main one ("why does this #$%& thing fail?") :-) JW |
| Topic | Author | Date |
| calling Winbond specialists | 01/01/70 00:00 | |
| what datasheet do you have? | 01/01/70 00:00 | |
| detailled? | 01/01/70 00:00 | |
| ? | 01/01/70 00:00 | |
| WOM | 01/01/70 00:00 | |
| Hoorah for Winbonds | 01/01/70 00:00 | |
| a timing error that | 01/01/70 00:00 | |
| CHPCON writes | 01/01/70 00:00 | |
| other use of CHPCON | 01/01/70 00:00 | |
| where is the happy-end? | 01/01/70 00:00 | |
| the happy end | 01/01/70 00:00 | |
| oh... | 01/01/70 00:00 | |
| there was no problem | 01/01/70 00:00 | |
| ah, but then... | 01/01/70 00:00 | |
| an obnoxious interference | 01/01/70 00:00 | |
| the goo' ol' EMI... | 01/01/70 00:00 | |
| NOT EMI | 01/01/70 00:00 | |
| Ah... | 01/01/70 00:00 | |
| correction | 01/01/70 00:00 | |
if the customer complains... | 01/01/70 00:00 |