Fujitsu MBC2073RC, MBC2036RC Mode = 0, 0, 0, 1 Header + data, with address specification

Command Specifications

(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 HDD'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 HDD 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 HDD'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 HDD'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 HDD 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 HDD 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 HDD's data buffer is completed. When zero is specified in the "Transfer byte length" field, this command is terminated without executing a data transfer.

272 C141-C013