 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
7721 Datasheet(PDF) 541 Page - Renesas Technology Corp |
|
|
|||||||||||||||||||||||||||||
7721 Datasheet(HTML) 541 Page - Renesas Technology Corp |
|
|
541 / 577 page  APPENDIX Appendix 9. 7721 Group Q & A 7721 Group User’s Manual 17–78 Watchdog timer When detecting the software runaway by the watchdog timer, if the same value as the contents of the reset vector address is set to the watchdog timer interrupt vector address, not performing software reset, how does it result in? When branching to the reset branch address within the watchdog timer interrupt routine, how does it result in? A The CPU registers and the SFR are not initialized in the above-mentioned way. Accordingly, the user must initialize all of them by software. Note that the processor interrupt priority level (IPL) retains “7” of the watchdog timer interrupt priority level and is not initialized. Consequently, all interrupt requests cannot be accepted. When rewriting the IPL by software, save once the 16-bit immediate value to the stack area and then restore that 16-bit immediate value to all bits of the processor status register (PS). When a software runaway occurs, we recommend to use software reset in order to initialize the microcomputer. Q |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
