Watchdog Timer Operation States - Hitachi H8/3827R Series Hardware Manual

Table of Contents

H'F8 written

Internal reset

Figure 9.17 Typical Watchdog Timer Operations (Example)

Watchdog Timer Operation States

Table 9.18 summarizes the watchdog timer operation states.

Table 9.18 Watchdog Timer Operation States

Operation Mode

Note: * Functions when øw/32 is selected as the input clock.

H'F8 written in TCW

Reset Active

Functions Functions Halted

Functions Functions Retained

Retained Retained Retained

TCW overflow

clock cycles