User`s manual

Watchdog Timer & Utilities • 41
5
Utilities
This chapter explains extended functions of the PXD-3710/3710F
controller, including watchdog timer, Intel Pre-boot Execution Environment
(PXE), and hot swap introduction.
5.1 Watchdog Timer Overview
The primary function of the watchdog timer is to monitor the PXD-3710’s
operation and take corrective action if the software fails to function as
programmed. The major features of the watchdog timer are:
Two-stage
Enabled and disabled through software control
Armed and strobed through software control
Figure 8: Watchdog Timer Architecture