l4969 STMicroelectronics, l4969 Datasheet - Page 29

• Manufacturer Part Number: l4969
• Description: System Voltage Regulator With Fault Tolerant Low Speed Can-transceiver
• Manufacturer: STMicroelectronics

2.11 ADR 15: SYS System Status Register
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.
CRC-Checking
disabled
NCRC
D7
Reserved
status flag
(test only)
STAT
Window watchdog
after failure of
Warm start
WNDF
Ack during Startup
after < 7 missing
Warm start
STF
Overtemp failure
Warm start
after V1
OTF
Ack during Startup
after 7 missing
Warm start
UCF
prog. Sleep mode
Warm start
after leaving
WAKE
Cold Start
after low VS
NPOR
D0
L4969
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