Hello,
I am using hw watchdog on my application with TC65 since 2007. Sometimes
TC65, 65i, 65ix go down without apparent causes. Another cause can be
power supply dropout, because TC65 is sensitive for fast changes power
supply (on/off) during start (i mean, that TC65 is started by two
signals EMERG and IGT by RC cicruit in many hw applications).
Sorry for my English.
Ondrej