NXP Semiconductors KL25 Series - System Reset Status Register 1 (RCM_SRS1)

RCM_SRS0 field descriptions (continued)
Field Description
2
LOC
Loss-of-Clock Reset
Indicates a reset has been caused by a loss of external clock. The MCG clock monitor must be enabled
for a loss of clock to be detected. Refer to the detailed MCG description for information on enabling the
clock monitor.
0 Reset not caused by a loss of external clock.
1 Reset caused by a loss of external clock.
1
LVD
Low-Voltage Detect Reset
If the LVDRE bit is set and the supply drops below the LVD trip voltage, an LVD reset occurs. This bit is
also set by POR.
0 Reset not caused by LVD trip or POR
1 Reset caused by LVD trip or POR
0
WAKEUP
Low Leakage Wakeup Reset
Indicates a reset has been caused by an enabled LLWU module wakeup source while the chip was in a
low leakage mode. In LLS mode, the RESET pin is the only wakeup source that can cause this reset. Any
enabled wakeup source in a VLLSx mode causes a reset. This bit is cleared by any reset except
WAKEUP.
0 Reset not caused by LLWU module wakeup source
1 Reset caused by LLWU module wakeup source
16.2.2 System Reset Status Register 1 (RCM_SRS1)
This register includes read-only status flags to indicate the source of the most recent
reset. The reset state of these bits depends on what caused the MCU to reset.
NOTE
The reset value of this register depends on the reset source:
• POR (including LVD) — 0x00
• LVD (without POR) — 0x00
• VLLS mode wakeup — 0x00
• Other reset — a bit is set if its corresponding reset source
caused the reset
Address: 4007_F000h base + 1h offset = 4007_F001h
Bit 7 6 5 4 3 2 1 0
Read 0 0 SACKERR 0 MDM_AP SW LOCKUP 0
Write
Reset
0 0 0 0 0 0 0 0
Chapter 16 Reset Control Module (RCM)
KL25 Sub-Family Reference Manual, Rev. 3, September 2012
Freescale Semiconductor, Inc. 267