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M851 WristApp Design Guide Rev 1.2
Timex Corporation 35
structure is displayed on the LCD.
2 Update Flag Indicates the data positions that were recently updated.
3 Second Seconds data in BCD format
4 Minute Minute data in BCD format
5 Hour Hour data in BCD format
6 Date Date data in BCD format
7 Month Month in BCD format
8 Year (Lo Byte) Year data (low byte) in BCD format
9 Year (Hi Byte) Year data (high byte) in BCD format
10 Day of Week Computed Day of Week data
11 Week Number Computed Week Number data in BCD format
Resource flag bit definitions:
Bit Name Description
0
bKReserved
Resource is owned
1
bKActive
Resource is active
2
bKDispUpdRequest
Display Update Event is requested
3
bKTODPrimaryTZ
Resource is the primary time zone
4
bKTODEuroFormat
Display date in Euro format
5
bKTOD24HourFormat
Display hour in 24-format
6
bKTODWeekNumberDisplay
Display week number
7
bKTODYMDFormat
Display in YMD format
Update flag bit definitions:
Bit Name Description
0
unused
1
bKTODMinuteUpd
Minute data is updated
2
bKTODHourUpd
Hour data is updated
3
bKTODDateUpd
Date data is updated
4
bKTODMonthUpd
Month data is updated
5
bKTODYearUpd
Year data is updated
6
bKTODWeekUpd
Week data is updated
7
Unused
4.6.4 Backup Resource
The Backup Resource provides an application the ability to track the number of minutes since the last
resource setup and activation.
This is used to track a backup alarm for an alarm application rather than wasting a Time Zone Check
Resource which is much more complex to setup.
BACKUP Resource Data Structure:
Offset Data Type Description
0 Application Index Index of application owner
1 Resource Flag Specifies status of the resource
2 Counter Specifies the number of minutes of countdown.
Resource flag bit definitions:
Bit Name Description