Datasheet

M41T94 Clock operations

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4.13 Initial power-on defaults

Upon initial application of power to the device, the following register bits are set to a '0' state:

Watchdog register, TR, FT, AFE, ABE, and SQWE. The following bits are set to a '1' state:

ST, OUT, and HT (see Table 9: Default values).

Table 8. t

REC

definitions

REC

bit (TR) STOP bit (ST)

REC

time

Units

Min Max

009698ms

0140200

(1)

1. Default setting

1 X 50 2000 µs

Table 9. Default values

Condition TR ST HT Out FT AFE ABE SQWE

WATCHDOG

(1)

1. BMB0-BMB4, RB0, RB1.

Initial power-up

(battery attach for

SNAPHAT

)

(2)

2. State of other control bits undefined.

0111000 0 0

Subsequent power-up

(with battery backup)

(3)

3. UC = Unchanged

UC UC 1 UC 0 0 0 0 0