HP Surestore 80fx Optical Drive and Library SCSI-2 Command Reference - Page 230

Jukebox SCSI-2 Command Set Read Buffer Command (3CH) Jukebox SCSI-2 Commands NOTE Table 3-40 Read Buffer Command (3CH) This command reads data from the jukebox. Only the Buffer IDs listed in Table 3-42 on page 3-44 are intended for use outside of the factory. Read Buffer Command CDB Byte 7 6 5 4 3 2 1 0 0 Operation Code (3CH) 1 Logical Unit Number Reserved (0) (0) Mode 2 Buffer ID 3 Buffer Offset (MSByte) 4 Buffer Offset 5 Buffer Offset (LSByte) 6 Byte Transfer Length (MSByte) 7 Byte Transfer Length 8 Byte Transfer Length (LSByte) 9 Control Byte (0) Mode Indicates which data format is to be used. Refer to Table 3-41 on page 3-44 for valid values. Buffer ID Indicates which buffer is to be used. Refer to Table 3-41 on page 3-44 for valid values. Buffer Offset Indicates at what address the data should be written, offset from the beginning of the buffer. Byte Transfer Length Indicates the number of data bytes to be read from the buffer (maximum of 65535). Chapter 3 3-43