DS1678 Maxim, DS1678 Datasheet - Page 13

• Manufacturer Part Number: DS1678
• Description: The DS1678 real-time clock (RTC) event recorder records the time and date of a nonperiodic, asynchronous event each time the active-low INT pin is activated
• Manufacturer: Maxim

Figure 3. Start Mission Flow Chart
Time/Date Stamp
Record Event in
Event Memory
Automatically
The ME bit is
Written to a 1
Incrementing
Incremented
Mem Clr =1
Write a 1 to
the MIP bit
ETC Starts
INT Input
is Written
Activated
Cleared
Computer
ETC is
Start via
EC is
yes
yes
no
no
Monitor Input
Continue to
Memory
Clear
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Time/Date Stamp is
MIP Automatically
Record Event in
Event Memory
Written to a 1
Incrementing.
External Event
Mem Clr =1
Write a 1 to
the ME bit.
Incremented
INT Input
ETC Starts
Activated
INT Input
Activated
MIP = 0
Cleared
Written
ETC is
Start via
EC is
yes
yes
yes
no
no
no
Monitor Input
Monitor Input
Continue to
Continue to
Memory
Clear