ARM, RISC-V контроллеры

а вот что написано в The Insider's Guide To The Philips ARM7-Based uC про WDT: ...This needs a feed sequence similar to the PLL. To feed the watchdog you must write 0xAA followed by 0x55. а теперь про PLL: Once you have updated the PLLCON and PLLCFG registers, you must write 0x000000AA followed by 0x00000055 (the PLLFEED register). These values must be written on consecutive cycles. If you program the PLL with interrupts enabled, it is conceivable that an interrupt could occur after the first word of the sequence is written and the new PLL settings would not become effective. как видим про WDT ни слова про последовательные циклы записи и прерывания но зато все описано в секции про PLL.