Pioneer SCSI-2 - Manual (Page 103)

CD-ROM SCSI-2 COMMAND REFERENCE MANUAL VERSION 3.1 (OB-U0077C)
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T ABLE 2-22B READ CD, H EADER C ODE F IELD D EFINITION
Header(s) Code Definition Description
00b None None of the header data shall be placed in the data stream.
01b Header Only Only the mode 1 or Form 1 4-byte header will be returned in
the data stream.
10b Sub-header Only Only the Mode 2 Form 1 of 2 Sub-header will be placed into
the data stream.
11b All Headers Both the Header and Sub-header will be placed in the data
stream.
T ABLE 2-22C READ CD, E RROR F LAG F IELD D EFINITION
Error Flags Definition Description
00b None No Error information will be included in the data stream.
01b C2 Error Flag data The C2 Error flag (Pointer) bits (2352 bits or 294 bytes)
will be included in the data stream. When the C2 Error
pointer bits are included in the data stream, there will be
one bit for each byte in error in the sector (2352 total).
The bit ordering is from the most significant bit to the
least significant bit in each byte . The first bytes in the
sector will be the first bits/bytes in the data stream.
10b C2 & Block Error Flags Both the C2 Error Flags (2352 bits or 294 bytes) and the
Block Error Byte will be included in the data stream.
The Block Error byte is just the longitudinal parity of all
the C2 Error Flag bytes, So that the data stream will
always be an even number of bytes, the Block Error byte
will be padded with a 0 byte. The Block Error byte will
be first in the data stream followed by the pad byte.
11b Reserved Reserved for future enhancement.