| ??? 07/12/01 21:13 Read: times |
#13185 - RE: T89c51RD2 or P89c51RD2 |
User's of Temic T89c51RD2 have to know that the cpu has a small bug.
If the cpu core runs in x2 mode and peripherals in x1 mode, then the IE0 & IE1 IRQ flags, are not always cleared by hardware(as stated in data sheet) when the ISR takes control. If inside the ISR the user clear the IE0 & IE1 the cpu works fine. |
| Topic | Author | Date |
| T89c51RD2 or P89c51RD2 | 01/01/70 00:00 | |
| RE: T89c51RD2 or P89c51RD2 | 01/01/70 00:00 | |
RE: T89c51RD2 or P89c51RD2 | 01/01/70 00:00 |