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2.11 ADR 15: SYS System Status Register

Figure 26.

The lower 6 bit of this register can be used to analyze the reason of startup (after NRESET low). This information

is valid until the first Watchdog-Acknowldge, and will then be reinitialized to 000001.

STF

OTF

WNDF

STAT

NCRC

UCF

WAKE

NPOR

D7

D0

CRC-Checking

disabled

Warm start

after failure of

Window watchdog

Reserved

status flag

(test only)

Warm start

after < 7 missing

Ack during Startup

Warm start

after V1

Overtemp failure

Warm start

after 7 missing

Ack during Startup

Warm start

after leaving

prog. Sleep mode

Cold Start

after low VS