FUJITSU MCM3064AP - Manual (Page 154)

Host Interface
4-84 C156-E227-01EN
4.6.27 WRITE LONG command
Table 4.117 WRITE LONG command
Bit
Byte
7 6 5 4 3 2 1 0
0 Operation Code (3Fh)
1 Logical Unit Number Reserved
2-5 Logial Block Address
6 Reserved
7-8 Byte Transfer Length
9-11 Reserved
The WRITE LONG command writes data in the data, CRC, and ECC sections to
the specified logical block address.
The transfer byte length must be a multiple of 600 (258h) bytes for 512 byte media
and a multiple of 2380 (94Ch) bytes for 2048 byte media.