W90P710_05 Datasheet, PDF (420/526 Pages) Winbond – 16/32-bit ARM microcontroller

W90P710
Continued
BITS
FCR Calibration
DESCRIPTIONS
Example 1
Frequency counter measurement: 32773.65Hz
Integer part: 32773 => FCR [11:8] = 0xc
Fraction part: 0.65 X 60 = 39(0x27) => FCR[5:0]=0x27
Example 2
Frequency counter measurement: 32765.27Hz
Integer part: 32765=> FCR [11:8] = 0x4
Fraction part: 0.27 X 60 = 16.2(0x10) => FCR [5:0] = 0x10
RTC Time Loading Register (RTC_TLR)
REGISTER ADDRESS R/W
DESCRIPTION
RTC_TLR 0xFFF8_400C R/W RTC Time Loading Register
RESET VALUE
0X0000_0000
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
Hi_hr
Lo_hr
15
14
13
12
11
10
9
8
Reserved
Hi_min
Lo_min
7
6
5
4
3
2
1
0
Reserved
Hi_sec
Lo_sec
Note: TLR is a BCD digit counter and RTC will not check loaded data.
BITS
[21:20]
[19:16]
[14:12]
[11:8]
[6:4]
[3:0]
Hi_hr
Lo_hr
Hi_min
Lo_min
Hi_sec
Lo_sec
DESCRIPTIONS
10 hour time digit
1 hour time digit
10 min time digit
1 min time digit
10 sec time digit
1 sec time digit
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