RV-8523 Datasheet, PDF (31/57 Pages) MICORO CRYSTAL SWITZERLAND – Real Time Clock

Micro Crystal
Real Time Clock / Calendar Module
RV-8523
9.7. OFFSET
9.7.1.CORRECTION WHEN MODE = 0
The correction is triggered once per two hours and then correction pulses are applied once per minute until the
programmed correction values have been implemented.
Correction pulses for MODE = 0:
Correction value
Hour
+1 or -1
02
+2 or -2
02
+3 or -3
02
:
:
+59 or -59
02
+60 or -60
02
+61 or -61
02
03
+62 or -62
02
03
+63 or -63
02
03
-64
02
03
Minute
00
00 and 01
00, 01 and 02
:
00 to 58
00 to 59
00 to 59
00
00 to 59
00 and 01
00 to 59
00, 01 and 02
00 to 59
00, 01, 02 and 03
Correction pulses on INT_1
per minute¹⁾
1
1
1
:
1
1
1
1
1
1
1
1
1
1
1) _{The correction pulses on pin INT_1 are} 1_{/64 s wide.}
In MODE = 0, any timer or clock output using a frequency below 64 Hz is affected by the clock correction.
Effect of clock correction for MODE = 0:
CLKOUT frequency (Hz)
Effect of correction
32’768
16’384
8’192
4’096
1’024
32
1
No effect
No effect
No effect
No effect
No effect
Affected
Affected
Timer source clock
frequency (Hz)
4’096
64
1
1_/60
1_/3600
-
-
Effect of correction
No effect
No effect
Affected
Affected
Affected
-
-
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