W90P710_05 Datasheet, PDF (419/526 Pages) Winbond – 16/32-bit ARM microcontroller

W90P710
RTC Frequency Compensation Register (RTC_FCR)
REGISTER ADDRESS R/W
DESCRIPTION
RTC_FCR 0xFFF8_4008 R/W RTC Frequency Compensation Register
RESET VALUE
0X0000_0700
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
Reserved
FCR_int
7
6
5
4
3
2
1
0
Reserved
FCR_fra
BITS
[31:12]
[11:8]
[5:0]
DESCRIPTIONS
Reserved _-
FCR [11:8]: Integer part
FCR_int
FCR_fra
Integer part
of detected
value
32776
32775
32774
32773
32772
32771
32770
32769
FCR[11:8]
1111
1110
1101
1100
1011
1010
1001
1000
Integer part
of detected
value
32768
32767
32766
32765
32764
32763
32762
32761
FCR[11:8]
0111
0110
0101
0100
0011
0010
0001
0000
Fraction part
Formula: FCR_int = (fraction part of detected value) X 60
Note: Digit in FCR must be expressed as hexadecimal number.
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Publication Release Date: January 17, 2005
Revision A.2