Since WD_SETx signals are routed externally, WDT configuration can be changed by optional circuitry implemented on the carrier board. Different solutions can be implemented on the carrier board, depending on system requirements. The easiest circuit consists of additional stronger pull-up/down resistors connected to WD_SETx pins in order to overrule default configuration. As MAX6373 allows to change the configuration during operation, more complex solutions can be implemented as well.
On request, PS_MIO15_500 can be disconnected from WDI (please contact Sales Department for more details). This configuration provides two independent signals (EX_WDT_REARM and PS_MIO15_500) Please note that allow on the implementation of customized solutions on [[BoraEVB|BORAEVB]] carrier board. For example you may want to use the Zynq's System Watchdog Timer , by default WDT is disabled via S1, S2 and S3 dip switches (SWDTWD_SET2=0, WD_SET1=1, WD_SET0=1) instead of MAX6373 to reset the system through PS_MIO15_500 that can be configured as SWDT reset.
Please note It is also worth mentioning that Zynq integrates a System Watchdog Timer (SWDT) that can optionally generates a reset pulse on the BORAEVB carrier board, the watchdog PS_MIO15_500 pad if this is externally configured as disabledSWDT reset. In case such a configuration is requested, on request MAX6373 may not be populated. For more details about this option, please contact [mailto:sales@dave.eu Sales Department].
==References==