LAPIS Semiconductor ML62Q1000 Series, User Manual, Page: 162 / 882

ML62Q1000 Series User's Manual
Chapter 3 Reset Function
FEUL62Q1000 3-8
3.2.3 Safety Function Reset Status Register (SRSTAT)
SRSTAT is a special function register (SFR) to indicate the cause of occurrence of a safety function reset.
When the safety function reset occurs, only the bit that indicates the cause of the reset occurred is set to "1". Other bits
retain values before occurrence of the reset. After identifying the cause of the reset, write "0xFF" to the SRSTAT register
to initialize it to "0x00" for preparing the next reset.
See Chapter 29 "Safety Function" for details of the safety function.
Address: 0xF05A (SRSTAT)
Access: R/W
Access size: 8 bit
Initial value:
Undefined
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Word -
Byte - SRSTAT
Bit - - - - - - - - - - - - - - RPER FIAR
R/W R R R R R R R R R R R R R R R/W R/W
Initial
value
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0/1 0/1
Bit
No.
Bit symbol
name
Description
15 to 2 - Reserved bits
1 RPER A bit to indicate that a RAM parity error reset has occurred.
This bit is initialized to "0" when "1" is written.
0: No RAM parity error reset occurred
1: RAM parity error reset occurred
0 FIAR A bit to indicate that an unused ROM area access reset has occurred.
This bit is initialized to "0" when "1" is written.
0: No unused ROM area access reset occurred
1: Unused ROM area access reset occurred