| ??? 01/28/01 12:40 Read: times |
#8720 - RE: Clocking 8279 using ALE of 8952 |
Hi Mohid,
I just verified the Atmel microcontrollerdatabook to be sure; for the 89C52 it says: 'The read strobe to external memory, PSEN, is used for all external program fetches. Internal program fetches do NOT activate PSEN.' (Atmel microcontroller data book october 1995 page 2-5) So this must be the answer to your question.... You must either use a microcontroller like Aka mentioned, or use external program memory with EA pin wired to ground OR use some other clock.... Henk |
| Topic | Author | Date |
| Clocking 8279 using ALE of 8952 | 01/01/70 00:00 | |
| RE: Clocking 8279 using ALE of 8952 | 01/01/70 00:00 | |
| RE: Clocking 8279 using ALE of 8952 | 01/01/70 00:00 | |
| RE: Clocking 8279 using ALE of 8952 | 01/01/70 00:00 | |
| RE: Clocking 8279 using ALE of 8952 | 01/01/70 00:00 | |
For Aka j | 01/01/70 00:00 |