| ??? 08/08/06 20:20 Read: times |
#121883 - external memory-mapped Responding to: ???'s previous message |
PortC is external-memory-mapped so the only thing you can do with it is movx, bytewise.
In fact, the uPSD consists of a 8031 and the PSD (a combination of FLASH, SRAM, a few ports and decoding logic). It is absolutely the sam as a 2-chip solution, just in 1 chip. I assume you use C, which might hide the details from you - a nice example of how the underlying asm understanding might help to get the concept right. Jan Waclawek |
| Topic | Author | Date |
| Question on PSD Ports on ST uPSD33xx | 01/01/70 00:00 | |
| It\'s in thw datasheet | 01/01/70 00:00 | |
| Not bit addressable | 01/01/70 00:00 | |
external memory-mapped | 01/01/70 00:00 |