UUGear Witty Pi 4 - Page 45

41
37
Standard value for RTC offset
-127~127
0
Read & Write
38
Turn on/off temperature compensation.
 ON = 1
 OFF = 0
0 or 1
1
Read & Write
39
A flag that indicates ALARM1 (startup) is
triggered and not processed.
0 or 1
0
Read & Write
40
A flag that indicates ALARM2 (shutdown) is
triggered and not processed.
0 or 1
0
Read & Write
41
Set 1 to ignore I2C_POWER_MODE for low
voltage shutdown and recovery.
0 or 1
0
Read & Write
42
Set 1 to ignore I2C_LV_SHUTDOWN for low
voltage shutdown and recovery.
0 or 1
0
Read & Write
43
Below-temperature action:
 0 = do nothing
 1 = shutdown
 2 = startup
0~2
0
Read & Write
44
Below-temperature threshold in C
-30~80
75
Read & Write
45
Over-temperature action:
 0 = do nothing
 1 = shutdown
 2 = startup
0~2
0
Read & Write
46
Over-temperature threshold in C
-30~80
80
Read & Write
47
Delay of startup (in second) when power supply
is connected and register #17 is set to 1
1
0~255
0
Read & Write
1
Available since firmware revision 3.