CXD5602 User Manual
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3.6.5.2.2
WrRegPreCnt(0x04)
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Reserved
-
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Rese
rved
Pre
-
RW
bit[14:0] : Pre[14:0] (PreCounter Write Value)
This is a value reflected on PreCounter of RTC when Write Request (WrRegReq) is issued, or when RTC
receives External Alarm Flag.
3.6.5.2.3
WrRegReq(0x08)
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Reserved
-
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Reserved
Busy
A
-
RW
When you write “1” on
WrReg
Req
.BusyA
, this register issues a write request. After the write request is issued,
WrRegPostCnt
values and
WrRegPreCnt
values are reflected on RTC Counter values. (Of RTC Counter 47 bits,
WrRegPostCnt
values are reflected on higher 32 bits, and
WrRegPreCnt
values are reflected on lower 15 bits.)
This register is cleared to “0” after executing the request and becomes possible to issue a request again.
(
OffsetReq.BusyA
and
RdReq.BusyA
indicate similar status.)
bit[0] : BusyA (Write Request)
BusyA
Description of Functions
0
Writing 0: You cannot write “0”.
1
Writing 1: issues Write Request
Summary of Contents for CXD5602
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