DS1678 Datasheet, PDF (13/25 Pages) Maxim Integrated Products – Real-Time Event Recorder

Figure 3. Start Mission Flow Chart
Start via
Computer
DS1678 Real-Time Event Recorder
Start via
External Event
no
Mem Clr =1
yes
Clear
Memory
no
Mem Clr =1
yes
Clear
Memory
Write a 1 to
the MIP bit
The ME bit is
Automatically
Written to a 1
Time/Date Stamp
is Written
ETC Starts
Incrementing
EC is
Incremented
no
INT Input
Activated
yes
Record Event in
Event Memory
ETC is
Cleared
Write a 1 to
the ME bit.
MIP = 0
Continue to
Monitor Input
no
INT Input
Activated
yes
MIP Automatically
Written to a 1
Time/Date Stamp is
Written
ETC Starts
Incrementing.
EC is
Incremented
no
INT Input
Activated
yes
Record Event in
Event Memory
ETC is
Cleared
13 of 25
Continue to
Monitor Input
Continue to
Monitor Input