Fujitsu MAB3091SC Product Manual - Page 43
Sector format, Trailing TRNG/Sync Byte SB
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3.1.4 Sector format Each sector on the track consists of an ID field, a data field, and a gap field which separates them. Figure 3.6 gives sector format examples. Figure 3.6 Sector format Each sector on the track consists of the following fields: (1) Gaps (G1) The gap length at the time of formatting (initializing) is listed in Figure 3.6. Pattern X'00' is written on the gap field. (2) PLO Sync In this field, pattern X'00' in the length in bytes listed in Figure 3.6 is written. (3) Trailing (TRNG)/Sync Byte (SB) In this field, special pattern in the length in bytes listed in Figure 3.6 is written. (4) LBA The logical block address is written in this field. (5) Data field User data is stored in the data field of the sector. The length of the data field is equal to that of the logical data block which is specified with a parameter in the MODE SELECT command. Any even number between 512 and 528 bytes can be specified as the length. 3 - 8 C141-E035-02EN