DS1678 Datasheet, PDF (11/25 Pages) Maxim Integrated Products – Real-Time Event Recorder

DS1678 Real-Time Event Recorder
Figure 2. DS1678 RTC and Control Page
ADDRESS
00
01
02
03
04
05
06
07
MSB
BIT 7
0
0
0
0
0
0
BIT 6 BIT 5 BIT 4
10 Seconds
10 Minutes
12/24 ^AM/PM 10 Hr
10 Hr
0
0
0
0
10 Date
0
0
10 Mo
10 Year
10 Century
BIT 3
0
BIT 2 BIT 1
Seconds
Minutes
LSB
BIT 0
Hour
Day of Week
Date
Month
Year
Century
08
MS
10 Seconds Alarm
Seconds Alarm
09
MM
10 Minutes Alarm
0A
MH 12/24 ^AM/PM 10 Hr
10 Hr
Minutes Alarm
Hour Alarm
0B
MD
0
0
0
0
Day-of-Week Alarm
0C
(Reads 00h)
0D
0E
ME CLR DIS1 DIS0
RO
TR1 TR0 EOSC
0F
0
MEM
CLR
MIP
CM LOBAT ROF
0
ALMF
10
Byte 1
11
Byte 2
12
Byte 3
↓
↓
2F
Byte 32
Higher addresses read back as 00h while a mission is in progress.
30
0
10 Seconds
Seconds
31
0
10 Minutes
32
0
12/24 ^AM/PM 10 Hr
10 Hr
Minutes
Hours
33
0
0
0
0
0
Day-of-Week
34
0
0
10 Date
Date
35
0
0
0
10 Mo
Month
36
10 Year
Year
37
10 Century
Century
38
Event 0 Elapsed Time from Last Event Counter LSB
39
Event 0 Elapsed Time from Last Event Counter MSB
3A
Low Byte
3B
Medium Byte
3C
High Byte
3D
Low Byte
3E
High Byte
3F
Low Address Byte
40
High Address Byte
41
Low Address Byte
42
High Address Byte
43
Data Byte
44
↓
(Reads 00h)
FF
FUNCTION
RTC
RTC Alarm
Reserved
Control
Status
User-
Programmable
NV Memory
Time Stamp
Event 0 Rollover
Stamp
Event Counter
Elapsed Time
Counter (ETC)
Address Pointer
Data Log RAM
Port
Reserved
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