Rainbow Electronics DS1678 - Manual (Page 8)

DS1678
8 of 26
DS1678 RTC AND CONTROL PAGE Figure 2a
ADDRESS BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 FUNCTION
00 0 10 SECONDS SECONDS
01 0 10 MINUTES MINUTES
AM/PM 02
0 12/24
10 HR
10 HR
HOUR
03 0 0 0 0 0 DAY OF WEEK
04 0 0 10 DATE DATE
05 0 0 0 10 MO MONTH
06 10 YEAR YEAR
07 10 CENTURY CENTURY
RTC
08 MS 10 SECONDS ALARM SECONDS ALARM
09 MM 10 MINUTES ALARM MINUTES ALARM
AM/PM
0A MH 12/24
10 HR
10 HR HOUR ALARM
0B MD 0 0 0 0 DAY-OF-WEEK ALARM
RTC
Alarm
0C
0D
(reads 00h) Reserved
0E ME CLR DIS1 DIS0 RO TR1 TR0 COE Control
0F 0
MEM
CLR
MIP CM LOBAT ROF 0 ALMF
Status
10
11
12
↓
2F
Byte 1
Byte 2
Byte 3
↓
Byte 32
User-
Programmable
NV Memory
30 0 10 SECONDS SECONDS
31 0 10 MINUTES MINUTES
AM/PM
32
0 12/24
10 HR
10 HR
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
Time Stamp
And
Elapsed Time
Counter
3A Low byte
3B Medium Byte
3C High Byte
Event Count
3D Low Byte
3E High Byte
Elapsed Time
Counter (ETC)
3F Low Address Byte
40 High Address Byte
Address
Pointer
41 Low Address Byte
42 High Address Byte
43 Data Byte
Data Log
RAM
Port
44
↓
FF
(reads 00h) Reserved