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C141-E124-01EN3 - 126
(2) Mode = 0, 0, 0, 1: Header + data, with address specification
The format of the data transferred to the INIT when this mode is specified is the same as the format
of the data in the case of Mode = 0, 0, 0, 0, with the data stored in the IDD’s data buffer
transferred to the INIT following the 4-byte header. In this mode, the address in the data buffer
can be specified in the “Buffer offset” field in the CDB.
The “Transfer byte length” field in the CDB specifies the total number of bytes of header and
buffer data that can be received by the INIT. The IDD reads the data from the data buffer
beginning from the byte position in the data buffer specified in the “Buffer offset” field of the CDB
and continuing in order, then adds the 4-byte header to it and transfers it to the INIT. Data transfer
is completed at the point when the number of bytes of the header and data from the IDD’s data
buffer, specified in the “Transfer byte length” field, has been transferred, or at the point when
transfer of the header and all the data in the IDD’s data buffer, to the final byte position, has been
completed. When zero is specified in the “Transfer byte length” field, this command is terminated
without executing a data transfer.
The format and contents of the 4-byte header transferred in this mode are the same as in the case of
Mode = 0, 0, 0, 0. However, the “Effective buffer data length” field in the header indicates the
size (byte length) of the data from the byte position in the data buffer specified in the “Buffer
offset” field in the CDB to the final byte position in the data buffer, including that byte. Also, the
length of the buffer data transferred to the INIT by this command is the value for the number of
bytes in the [“Transfer byte length” field in the CDB – 4 bytes] or the value indicated in the
“Effective buffer data length” in the header, whichever is smaller.
(3) Mode = 0, 0, 1, 0: Data only, with address specification
The data transferred to the INIT when this mode is specified is only the data which the IDD reads
from the data buffer. The header is not transferred as it is in Mode = 0,0,0,0 and Mode = 0,0,0,1.
In this mode, address in the data buffer can be specified in the “Buffer offset” field in the CDB.
The “Transfer byte length” field in the CDB specifies the total number of bytes of buffer data that
can be received by the INIT. The IDD reads the data in order beginning from the byte position in
the data buffer specified in the “Buffer address” field and transfers it to the INIT. Data transfer is
completed at the point when the number of bytes of buffer data specified in the “Transfer byte
length” field has been completed or transfer of the buffer data to the final byte position of the
IDD’s data buffer is completed. When zero is specified in the “Transfer byte length” field, this
command is terminated without executing a data transfer.