ml670100 Oki Semiconductor, ml670100 Datasheet - Page 45

• Manufacturer Part Number: ml670100
• Description: Ml670100 Is A High-performance 32-bit Microcontroller
• Manufacturer: Oki Semiconductor

3.2.3
The Reset Status Register (RSTST) is a 32-bit read-only register indicating the trigger for the
most recent system reset. The external reset signal (nRST) sets this register to 0x00000000; the
Watchdog Timer (WDT) counter overflow signal (WDTOV), to 0x00000001.
WDTRST
This flag indicates the trigger for the most recent system reset. A "0" indicates the external
reset signal (nRST); a "1," the Watchdog Timer (WDT) counter overflow signal(WDTOV).
Reset Status Register (RSTST)
Bit Descriptions
31
0
30
0
-- -
A "0" indicates a reserved bit. Always write "0" to it.
Writing "1" produces unreliable operation.
Figure 3.4 : Reset Status Register (RSTST)
0
3
2
0
0
1
WDTRST
0
0
1
External reset
Watchdog Timer (WDT) counter
overflow
3-5