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(1)
Mode = 0, 0, 0: Header + Data, without Address Specification
In this mode, a 4-byte header (with all zero's specified for the contents) must be added to the
top of the data transferred from the INIT. Also, zero must be specified in the "Buffer address"
field of the CDB.
The "Transfer byte length" field specifies the total number of bytes of data transferred form the
INIT. The transfer byte count specification includes the 4 bytes of the header. The IDD stores
the data transferred from the INIT with the header omitted ("Transfer byte length" – 4 bytes) in
the data buffer beginning in order from the top of the data buffer (Address: X '000000').
Furthermore, a value which is less than the [IDD's buffer size + 4 bytes] must be specified in
the "Transfer byte length" field in the CDB. When a value that is larger than this is specified,
no data transfer with the INIT is executed. Also, when zero is specified in the "Transfer byte
length" field, this command is terminated without data being transferred.
Fig. 3.31 shows the format of data transferred from the INIT when this mode is specified.
Bit
Byte
0
1
Header
2
3
4
5
Data
~
~
n
Figure 3.31 WRITE BUFFER Command: Buffer Data (Mode = 000, 001)
3 - 124
7
6
5
0
0
0
0
0
0
0
0
0
0
0
0
Buffer Data (Byte 0)
Buffer Data (Byte 1)
~
~
Buffer Data (Byte n–4)
C141-E039-01EN
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
~
~
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