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1.5. Dual-Port RAM Interface
GPS time format flag:
n
0 = UTC (default)
n
1 = GPS Time
Command 0x40: Observe Local Time Flag
This command programs the local time observed flag. If the local time flag is enabled, the TFP
adjusts its time by the local time offset. Note that the Generator Time is also affected by this setting.
See Command 0x1d for programming local time offset.
Byte
Type
Item
Value or Range
0
UINT8
ID
0x40
1
UINT8
Flag
0 or 1
Local Time Observe Flag:
n
0 = disable
n
1 = enable
Command 0x41: IEEE 1344 Daylight Saving and Local Time Flags
This command queries the daylight saving and local time observed flag. Additionally, this command
is used to set the IEEE 1344 Time Code daylight saving observed flag. Use this command in con-
junction with Command 0x19.
Byte
Type
Item
Value or Range
0
UINT8
ID
0x41
1
UINT8
Flag
0x00 - 0xff
Flag:
n
bit0 = reserve
n
bit1 = reserve
n
bit2 = reserve
n
bit3 (0x8) = local time observe flag
n
bit4 (0x10) = IEEE 1344 DST observe flag
n
bit5 - bit7 = not used
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