| ??? 10/29/08 17:00 Read: times |
#159484 - datasheet? Responding to: ???'s previous message |
Have you looked at the datasheet for a P80C591?
The datasheet should describe what pins that may be used as outputs, and what pins will be consumed by the CAN interface. A quick parametric search on Keils forum seems to indicate that it has 32 output pins. How many are lost to the CAN interface? If too many gets consumed, then you either have to switch to another processor, or add an external bus expansion - for example a latched shift register. |
| Topic | Author | Date |
| Need help picking 8051 CAN device | 01/01/70 00:00 | |
| Count the output pins | 01/01/70 00:00 | |
| reply | 01/01/70 00:00 | |
| datasheet? | 01/01/70 00:00 | |
| Doesn't the datasheet tell you that? | 01/01/70 00:00 | |
USE MCU with onchip ROM, free 18+ port pins | 01/01/70 00:00 | |
| search here | 01/01/70 00:00 | |
| reply | 01/01/70 00:00 | |
| It does not matter | 01/01/70 00:00 | |
| SILabs has an 8-porter with CAN | 01/01/70 00:00 | |
| C8051F040 | 01/01/70 00:00 | |
| low current LEDs? | 01/01/70 00:00 | |
| Alternative suggestion. | 01/01/70 00:00 |