Micro crystal RV-8263-C7, Руководство по применению

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Micro Crystal
Ultra Small Real-Time Clock Module with I
2
C-Bus Interface RV-8263-C7
January 2019 35/61 Rev. 1.0
COMPENSATION PULSES WHEN MODE = 1 (FAST MODE) 4.10.2.
The compensation is triggered once every four minutes and then compensation pulses are applied once per
second up to a maximum of 60 pulses. When compensation values greater than 60 pulses are used, additional
compensation pulses are made in the 59
th
second.
Clock compensation is made more frequently in MODE = 1; resulting in slightly higher power consumption.
Compensation pulses when MODE = 1:
Compensation pulses
in steps
Update every n
th
minute Second
Compensation pulses on
INT
̅̅̅̅̅
per second
(1)
+1 or -1 4 00 1
+2 or -2 4 00 and 01 1
+3 or -3 4 00, 01, and 02 1
: : : :
+59 or -59 4 00 to 58 1
+60 or -60 4 00 to 59 1
+61 or -61
4 00 to 58 1
4 59 2
+62 or -62
4 00 to 58 1
4 59 3
+63 or -63
4 00 to 58 1
4 59 4
-64
4 00 to 58 1
4 59 5
(1)
When MODE = 1, the compensation pulses on pin
INT
̅̅̅̅̅
are 977 µs wide. For multiple pulses, they are repeated at an interval of 1.953 ms.
In MODE = 1, CLKOUT or Timer Clock frequencies < 1.024 kHz are affected by the compensation pulses.
Effect of compensation pulses on frequencies when MODE = 1:
Frequency Effect of compensation
CLKOUT
32.768 kHz no effect
16.384 kHz no effect
8.192 kHz no effect
4.096 kHz no effect
2.048 kHz no effect
1.024 kHz no effect
1 Hz Frequency affected
Timer Clock
4.096 kHz no effect
64 Hz Periods affected
1 Hz Periods affected
1/60 Hz Periods affected