HP Surestore 80fx Optical Drive and Library SCSI-2 Command Reference - Page 136

SCSI-2 Drive Commands SCSI-2 Drive Command Set Write Buffer Command (3BH) CAUTION Table 2-86 Write Buffer Command (3BH) This command writes data to the drive data buffer. The transfer data consists of a 4-byte descriptor followed by the buffer data. If you write data to the buffer area, you may overwrite valid information that the drive needs for operation. Write Buffer Command CDB Byte 7 6 5 4 3 2 1 0 0 Operation Code (3BH) 1 Logical Unit Number Reserved (0) Mode (Table 2-87 on (0) page 2-100) 2 Buffer ID (See Table 2-87 on page 2-100) 3 Buffer Offset (MSByte) 4 Buffer Offset 5 Buffer Offset (LSByte) 6 Parameter List Length (MSByte) 7 Parameter List Length 8 Parameter List Length (LSByte) 9 Reserved (0) Flag Link Mode Buffer ID Indicates which data format is used. Refer to Table 2-87 on page 2-100 for valid values. Indicates which buffer is used. Refer to Table 2-87 on page 2-100 for valid values. Chapter 2 2-99