Specifications

Format of Time-Tag Data Files 57
High-Time Record
A record with bit 30 = 1 and bit 31 = 0 indicates that the higher part of the time has changed,
and that a new high-part of the photon time has to be used starting from the previously re-
corded photon, see Table 5. In other words, both parts, TIME[53:24] of this and TIME[23:0]
of the previous record, have to be used as a time tag.
Bit 31 Bit 30 Bit 29 Bit 28 Bit 27 Bit 26 Bit 25 Bit 24
0 1 TIME[53] TIME[52] TIME[51] TIME[50] TIME[49] TIME[48]
Bit 23 Bit 22 Bit 21 Bit 20 Bit 19 Bit 18 Bit 17 Bit 16
TIME[47] TIME[46] TIME[45] TIME[44] TIME[43] TIME[42] TIME[41] TIME[40]
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8
TIME[39] TIME[38] TIME[37] TIME[36] TIME[35] TIME[34] TIME[33] TIME[32]
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
TIME[31] TIME[30] TIME[29] TIME[28] TIME[27] TIME[26] TIME[25] TIME[24]
Table 5: Record defining a new high-part of the photon time