??? 04/10/06 15:48 Read: times |
#113979 - Mistake Responding to: ???'s previous message |
Sorry, made a mistake!
Markus said:
What does this mean? What happens with the high byte of the address? Is it set to 0? The higher address byte isn't used. So, P2 port lines can be used for different tasks. With this addressing methode only 256 bytes of external memory can be addressed. Kai |
Topic | Author | Date |
unclarity with movx instruction | 01/01/70 00:00 | |
Speed up | 01/01/70 00:00 | |
Mistake | 01/01/70 00:00 | |
Clarity prevails! | 01/01/70 00:00 | |
Quicker? | 01/01/70 00:00 | |
Quicker! | 01/01/70 00:00 | |
assumption... | 01/01/70 00:00 | |
Finally, you are right! | 01/01/70 00:00 | |
MOVX @Ri | 01/01/70 00:00 | |
since you did not have the time to find | 01/01/70 00:00 | |
wrong answer | 01/01/70 00:00 | |
Typo | 01/01/70 00:00 | |
thanks Erik for the correction | 01/01/70 00:00 | |
It is set to P0 | 01/01/70 00:00 | |
wrong again | 01/01/70 00:00 | |
Yes I am | 01/01/70 00:00 | |
an example | 01/01/70 00:00 | |
Internal XRAM | 01/01/70 00:00 | |
not really | 01/01/70 00:00 | |
Ports' SFR are set to 1 | 01/01/70 00:00 | |
not a port, a "page SFR"![]() | 01/01/70 00:00 | |
P2? | 01/01/70 00:00 | |
Doh! | 01/01/70 00:00 | |
which derivative | 01/01/70 00:00 | |
do not allow? | 01/01/70 00:00 | |
AT89S8252 | 01/01/70 00:00 | |
Aaaaah, so. Thanks. | 01/01/70 00:00 | |
Tanks | 01/01/70 00:00 |