Read Buffer Command (3Ch) - HP 2600fx - Optical Disk Drive Command Reference Manual

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