Datasheet

80
AT32UC3A
13.6.10 Reset Cause
Name: RCAUSE
Access Type: Read-only
• POR Power-on Reset
The CPU was reset due to the supply voltage being lower than the power-on threshold level.
• BOD: Brown-out Reset
The CPU was reset due to the supply voltage being lower than the brown-out threshold level.
• EXT: External Reset Pin
The CPU was reset due to the RESET pin being asserted.
• WDT: Watchdog Reset
The CPU was reset because of a watchdog timeout.
• JTAG: JTAG reset
The CPU was reset by setting the bit RC_CPU in the JTAG reset register.
• CPUERR: CPU Error
The CPU was reset because it had detected an illegal access.
• OCDRST: OCD Reset
The CPU was reset because the RES strobe in the OCD Development Control register has been written to one.
• JTAGHARD: JTAG Hard Reset
The chip was reset by setting the bit RC_OCD in the JTAG reset register or by using the JTAG HALT instruction.
31 30 29 28 27 26 25 24
- - - - - - - -
23 22 21 20 19 18 17 16
- - - - - - - -
15 14 13 12 11 10 9 8
- - - - - - JTAGHARD OCDRST
7 6 5 4 3 2 1 0
CPUERR - - JTAG WDT EXT BOD POR
32058K
AVR32-01/12