| ??? 06/17/05 06:02 Read: times |
#95133 - Towing an Ox-cart with your Porsche?! Responding to: ???'s previous message |
William Lipke said:
high speed microcontrollers with 0ne clock cycle per instruction execution, with fast read and write pulses. wood an 8255 i/o port chip be to slow to interface to these hi speed ones. That'd be like towing an Ox-cart with your Porsche?! See: http://www.8052.com/forum/read.phtml?id=81257 But, as Russel said, why not just choose a chip that meets your IO requirements without needing an IO expander?! See: http://www.keil.com/dd/parm_search.asp |
| Topic | Author | Date |
| high speed microcontrller | 01/01/70 00:00 | |
| Re: Fast 8255 :-O | 01/01/70 00:00 | |
| Working with high speed micros | 01/01/70 00:00 | |
| Select a device with the i/o you need | 01/01/70 00:00 | |
| Funny | 01/01/70 00:00 | |
| sweary mary | 01/01/70 00:00 | |
| Towing an Ox-cart with your Porsche?! | 01/01/70 00:00 | |
| Alternatively... | 01/01/70 00:00 | |
| Cheaper? | 01/01/70 00:00 | |
| Cheaper! | 01/01/70 00:00 | |
| The first question !!! | 01/01/70 00:00 | |
| See for yourself. | 01/01/70 00:00 | |
| another path | 01/01/70 00:00 | |
| Why on earth | 01/01/70 00:00 | |
| Why on earth not?! | 01/01/70 00:00 | |
| the likelyhood is very small | 01/01/70 00:00 | |
| Exactly | 01/01/70 00:00 | |
| now you lose me | 01/01/70 00:00 | |
| Here's why ... and maybe why not | 01/01/70 00:00 | |
| Free IP | 01/01/70 00:00 | |
| Lotsa misses, few hits | 01/01/70 00:00 | |
| re: Free IP | 01/01/70 00:00 | |
| solution | 01/01/70 00:00 | |
| voltage ... | 01/01/70 00:00 | |
| instead of moaning, use lattice | 01/01/70 00:00 | |
nobody's moaning ... | 01/01/70 00:00 |