 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
SN8F27E64LKB Datasheet(PDF) 44 Page - SONiX Technology Company |
|
|
|||||||||||||||||||||||||||||
SN8F27E64LKB Datasheet(HTML) 44 Page - SONiX Technology Company |
|
|
44 / 192 page  SN8F27E60 Series 8-Bit Flash Micro-Controller with Embedded ICE and ISP SONiX TECHNOLOGY CO., LTD Page 44 Version 1.4 3 3 3 RESET 3.1 OVERVIEW The system would be reset in three conditions as following. Power on reset Watchdog reset Brown out reset External reset (only supports external reset pin enable situation) When any reset condition occurs, all system registers keep initial status, program stops and program counter is cleared. After reset status released, the system boots up and program starts to execute from ORG 0. The POR, WDT and RST flags indicate system reset status. The system can depend on POR, WDT and RST status and go to different paths by program. 086H Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 PFLAG POR WDT RST STKOV - C DC Z Read/Write R R R R - R/W R/W R/W After reset - - - - - 0 0 0 Bit 7 POR: Power on reset and LVD brown-out reset indicator. 0 = Non-active. 1 = Reset active. LVD announces reset flag. Bit 6 WDT: Watchdog reset indicator. 0 = Non-active. 1 = Reset active. Watchdog announces reset flag. Bit 5 RST: External reset indicator. 0 = Non-active. 1 = Reset active. External reset announces reset flag. Finishing any reset sequence needs some time. The system provides complete procedures to make the power on reset successful. For different oscillator types, the reset time is different. That causes the VDD rise rate and start-up time of different oscillator is not fixed. RC type oscillator ’s start-up time is very short, but the crystal type is longer. Under client terminal application, users have to take care the power on reset time for the master terminal requirement. The reset timing diagram is as following. VDD VSS VDD VSS Watchdog Normal Run Watchdog Stop System Normal Run System Stop LVD Detect Level External Reset Low Detect External Reset High Detect Watchdog Overflow Watchdog Reset Delay Time External Reset Delay Time Power On Delay Time Power External Reset Watchdog Reset System Status |
|
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
