Title:
WATCHDOG TIMER DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/168291
Kind Code:
A1
Abstract:
Provided is a watchdog timer device capable of optimizing both a method that causes interruption and a method that causes resetting. This watchdog timer device comprises: a count value reception unit (2) that receives and holds CTOA and CTOB; a counter (3) that determines, in a WDT mode, occurrence of timeout when a count value with CTOA serving as an initial value is counted down to "0" without receiving input of a count clear request CCRA, and determines, in an RT mode, occurrence of timeout when a count value with CTOB serving as an initial value is counted down to "0" without receiving input of a count clear request CCRB; and a mode setting unit (4) that sets an initial state to the WDT mode, and causes the WDT mode to transition to the RT mode when determining occurrence of timeout in the WDT mode or causes the RT mode to transition to the WDT mode by receiving input of the count clear request CCRB in the RT mode.
Inventors:
SHIMOYAMA NAOHIKO (JP)
Application Number:
PCT/JP2021/004482
Publication Date:
August 11, 2022
Filing Date:
February 08, 2021
Export Citation:
Assignee:
SANKEN ELECTRIC CO LTD (JP)
International Classes:
G06F11/07
Foreign References:
| JP2002251300A | 2002-09-06 | |||
| JPH05233374A | 1993-09-10 | |||
| JP2005092430A | 2005-04-07 |
Attorney, Agent or Firm:
HORI, Shiroyuki et al. (JP)
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