Motor de Búsqueda de Datasheet de Componentes Electrónicos |
|
UCD90240 Datasheet(PDF) 28 Page - Texas Instruments |
|
UCD90240 Datasheet(HTML) 28 Page - Texas Instruments |
28 / 49 page WDI WDO <t WDI <t WDI <t WDI t WDI <t WDI UCD90240 SLVSCW0 – FEBRUARY 2015 www.ti.com Figure 18. Pin Selected States Configuration Window (Configure ►Pin Assignment tab) 7.3.11 Watchdog Timer UCD90240 provides a watchdog timer (WDT). The WDT can be reset by toggling a watchdog input (WDI) pin. If WDI is not toggled within a programmed period, the WDT will time out. As a result, a watchdog output (WDO) pin will be asserted (or generate a pulse) in order to provide a system-reset signal. The WDI and WDO pins are GPIO pins and are only optional. The WDI can be replaced by SYSTEM_WATCHDOG_RESET command sent over PMBus. The WDO can be manifested through the Boolean Logic defined GPOs, or its function can be integrated into the System Reset pin configured in the System Reset function (System Reset function will be discussed in the SYSTEM RESET FUNCTION section). The WDT timer is programmable from 0.001s to 258.048s. See the UCD90xxx Sequencer and System Health Controller PMBus Command Reference for details on configuring the watchdog timer. After a timeout, the WDT can be restarted by toggling the WDI pin or by writing a SYSTEM_WATCHDOG_RESET command over PMBus. A watchdog timing diagram is shown in Figure 19. Figure 19. Watchdog Timer Operation Timing Diagram The WDT can be active immediately at power up or has an initial wait time. Table 3 lists the programmable wait times before the WDT operation begins. Table 3. WDT Initial Wait Time 0 ms 100 ms 200 ms 400 ms 800 ms 1.6 s 3.2 s 28 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated Product Folder Links: UCD90240 |
Número de pieza similar - UCD90240 |
|
Descripción similar - UCD90240 |
|
|
Enlace URL |
Política de Privacidad |
ALLDATASHEET.ES |
¿ALLDATASHEET es útil para Ud.? [ DONATE ] |
Todo acerca de Alldatasheet | Publicidad | Contáctenos | Política de Privacidad | Intercambio de Enlaces | Lista de Fabricantes 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 |