 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
ST10F273E Datasheet(PDF) 93 Page - STMicroelectronics |
|
||||||||||||||||||||||||||||||
ST10F273E Datasheet(HTML) 93 Page - STMicroelectronics |
|
|
93 / 179 page  ST10F273E System reset 93/179 Figure 24. SW / WDT unidirectional RESET (EA = 0) 20.6 Bidirectional reset As shown in the previous sections, the RSTOUT pin is driven active (low level) at the beginning of any reset sequence (synchronous/asynchronous hardware, software and watchdog timer resets). RSTOUT pin stays active low beyond the end of the initialization routine, until the protected EINIT instruction (End of Initialization) is completed. The Bidirectional Reset function is useful when external devices require a reset signal but cannot be connected to RSTOUT pin, because RSTOUT signal lasts during initialization. It is, for instance, the case of external memory running initialization routine before the execution of EINIT instruction. Bidirectional reset function is enabled by setting bit 3 (BDRSTEN) in SYSCON register. It only can be enabled during the initialization routine, before EINIT instruction is completed. When enabled, the open drain of the RSTIN pin is activated, pulling down the reset signal, for the duration of the internal reset sequence (synchronous/asynchronous hardware, synchronous software and synchronous watchdog timer resets). At the end of the internal reset sequence the pull down is released and: ● After a Short Synchronous Bidirectional Hardware Reset, if RSTF is sampled low 8 TCL periods after the internal reset sequence completion (refer to Figure 19 and Figure 20), the Short Reset becomes a Long Reset. On the contrary, if RSTF is sampled high the device simply exits reset state. ● After a Software or Watchdog Bidirectional Reset, the device exits from reset. If RSTF remains still low for at least 4 TCL periods (minimum time to recognize a Short Hardware reset) after the reset exiting (refer to Figure 25 and Figure 26), the Software P0[7:2] not transparent P0[12:8] transparent not t. P0[1:0] not t. not transparent RST 1024 TCL RSTOUT RSTIN ALE 8 TCL P0[15:13] not transparent |
Similar Part No. - ST10F273E |
|
Similar Description - ST10F273E |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | 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 |
allmanual.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
