| ??? 02/12/01 07:52 Read: times |
#9227 - RE: Address decoding for AT89C52 |
Hi Andy,
you need no external logic, only connect the 32kB EPROM to the 8051 D0..D7, A0..A14, /OE to PSEN, /CE to GND. Then you get the following address mapping: 0000-1FFF = internal Flash 0000-1FFF 2000-7FFF = external EPROM 2000-7FFF 8000-9FFF = external EPROM 0000-1FFF The only trick ,you need a programmer, which can burn the code for 8000-9FFF into 0000-1FFF of the EPROM. Peter |
| Topic | Author | Date |
| Address decoding for AT89C52 | 01/01/70 00:00 | |
| RE: Address decoding for AT89C52 | 01/01/70 00:00 | |
| RE: Address decoding for AT89C52 | 01/01/70 00:00 | |
| RE: Address decoding for AT89C52 | 01/01/70 00:00 | |
| RE: Address decoding for AT89C52 | 01/01/70 00:00 | |
| RE: Address decoding for AT89C52 | 01/01/70 00:00 | |
| RE: Address decoding for AT89C52 | 01/01/70 00:00 | |
| RE: Address decoding for AT89C52 | 01/01/70 00:00 | |
| RE: Peter | 01/01/70 00:00 | |
| RE: Address decoding for AT89C52 | 01/01/70 00:00 | |
RE: George, Andy | 01/01/70 00:00 |