...........continued
Placeholder Content
s
The "Clock Status" is an ASCII character in the range 0-9, A-F representing a single hex digit.
To interpret the value, the Hex digit should be converted to a Nibble (half a byte) and referenced
against the state chart below which contains the bit position and subsequent definition ("x" is a place
holder).
Bit 3
Bit 2
Bit 1
Bit 0
Definition
x
x
x
0
No announcement for time change
x
x
x
1
Announcement for time change - active for an hour before
x
x
0
x
Local Standard Time (LST)
x
x
1
x
Daylight Saving Time (DST)
0
0
x
x
Time/date invalid/unknown
0
1
x
x
Time is known but clock running on oscillator - not synced
1
0
x
x
Clock is synced
1
1
x
x
Clock is synced, high accuracy
w
The "Day of Week" is an ASCII character in the range 0-9, A-F representing a single hex digit.
To interpret the value, the Hex digit should be converted to a Nibble (half a byte) and referenced
against the state chart below which contains the bit position and subsequent definition ("x" is a place
holder).
Bit 3
Bit 2
Bit 1
Bit 0
Definition
1
x
x
x
UTC time
x
0
0
1
Monday
x
0
1
0
Tuesday
x
0
1
1
Wednesday
x
1
0
0
Thursday
x
1
0
1
Friday
x
1
1
0
Saturday
x
1
1
1
Sunday
hh
Hour: "00"-"23" ASCII
mm
Minute: "00" - "59" ASCII
ss
Second: "00" - "59" ASCII
dd
Day of month: "01" - "31" ASCII
mm
Month of year: "01"-"12" ASCII
yy
Year: "10"-"99" representing the last two digits of the year
<LF>
Line feed (HEX 0A)
<CR>
Carriage return (HEX 0D)
<ETX>
End of text (HEX 03)
Appendix A: Specifications
©
2022 Microchip Technology Inc.
and its subsidiaries
Manual
DS00004572A-page 247
