Hitachi HDT725025VLA380 Specifications - Page 204
Output Parameters To The Device
UPC - 829686001084
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Output Parameters To The Device Feature Current URG (bit7) RC (bit6) URG specifies an urgent transfer request. The Urgent bit specifies that the command should be completed in the minimum possible time by the device and shall be completed within the specified Command Completion Time Limit. RC specifies Read Continuous mode enabled. If the Read Continuous bit is set to one, the device shall not stop execution of the command due to errors. If the RC bit is set to one and errors occur in reading or transfer of the data, the device shall continue to transfer the amount of data requested and then provide ending status with BSY bit cleared to zero, the SE bit set to one, the ERR bit cleared to zero, and the type of error, ICRC, UNC, IDNF or ABRT reported in the error log. If the RC bit is set to one and the CCTL expires, the device shall stop execution of the command and provide ending status with the BSY bit cleared to zero, the SE bit set to one, the ERR bit cleared to zero, and report the fact that the CCTL expired by setting the CCTO bit in the error log to one. In all cases, the device shall attempt to transfer the amount of data requested within the CCTL even if some data transferred is in error. NS (bit5) HSE (bit4) Stream ID (bit 0..2) NS (Not Sequential) may be set to one if the next read stream command with the same Stream ID may not be sequential in LBA space. HSE (Handle Stream Error) specifies that this command starts at the LBA of the last reported error for this stream, so the device may attempt to continue its corresponding error recovery sequence where it left off earlier. Stream ID specifies the stream to be read. The device shall operate according to the Stream ID set by the Read Stream command. Deskstar T7K500 Hard Disk Drive Specification 190