 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
ST92163 датащи(PDF) 104 Page - STMicroelectronics |
|
|
|||||||||||||||||||||||||||||
ST92163 датащи(HTML) 104 Page - STMicroelectronics |
|
|
104 / 224 page  104/224 ST92163 - TIMER/WATCHDOG (WDT) 8 ON-CHIP PERIPHERALS 8.1 TIMER/WATCHDOG (WDT) Important Note: This chapter is a generic descrip- tion of the WDT peripheral. However depending on the ST9 device, some or all of WDT interface signals described may not be connected to exter- nal pins. For the list of WDT pins present on the ST9 device, refer to the device pinout description in the first section of the data sheet. 8.1.1 Introduction The Timer/Watchdog (WDT) peripheral consists of a programmable 16-bit timer and an 8-bit prescal- er. It can be used, for example, to: – Generate periodic interrupts – Measure input signal pulse widths – Request an interrupt after a set number of events – Generate an output signal waveform – Act as a Watchdog timer to monitor system in- tegrity The main WDT registers are: – Control register for the input, output and interrupt logic blocks (WDTCR) – 16-bit counter register pair (WDTHR, WDTLR) – Prescaler register (WDTPR) The hardware interface consists of up to five sig- nals: – WDIN External clock input – WDOUT Square wave or PWM signal output – INT0 External interrupt input – NMI Non-Maskable Interrupt input – HW0SW1 Hardware/Software Watchdog ena- ble. Figure 61. Timer/Watchdog Block Diagram INT0 1 INPUT & CLOCK CONTROL LOGIC INEN INMD1 INMD2 WDTPR 8-BIT PRESCALE R WDTRH , WDTRL 16-BIT INTCLK/4 WDT OUTMD WROUT OUTPUT CONTROL LOGIC INTERRUPT CONTROL LOGIC END OF COUNT RESET TOP LEVEL INTERRUPT REQUES T OUTEN MUX WDOUT 1 IAOS TLIS INTA0 REQUEST NMI1 WDGEN HW0SW 1 1 WDI N1 MUX DOWNCOU NTER CLOCK 1Pin not present on some ST9 devices. |
|
ссылки URL |
| Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | Ссылка на техническое описание | обмен ссыками | поиск по производителю 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 |
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
