Manual/User Guide
Page 59
...signal to most inner to the position signal at calibration in the factory, and the compensation data is measured for each drive, and varies depending on each partition. The firmware calculates the loop gain from torque due to any cylinder. To realize the high speed seek operation, the value that... the head is calculated using the value in the SA cylinder. The torque vary with the disk drive and the cylinder where the head...
...signal to most inner to the position signal at calibration in the factory, and the compensation data is measured for each drive, and varies depending on each partition. The firmware calculates the loop gain from torque due to any cylinder. To realize the high speed seek operation, the value that... the head is calculated using the value in the SA cylinder. The torque vary with the disk drive and the cylinder where the head...
Manual/User Guide
Page 69
...operation Except during head moving. The servo control of sampling time, executes calculation, and updates the VCM drive current. When power is applied the heads are digitally controlled by the firmware. b) The head is loaded on the data surface. d) If the head is stopped at a constant...by filtering the position difference between the specified target position and the current position for each sampling time, the VCM drive current is digitally executed by the firmware. The MPU feeds the VCM current via the D/A converter and power amplifier to the disk. 4.7 Servo Control 4.7.4...
...operation Except during head moving. The servo control of sampling time, executes calculation, and updates the VCM drive current. When power is applied the heads are digitally controlled by the firmware. b) The head is loaded on the data surface. d) If the head is stopped at a constant...by filtering the position difference between the specified target position and the current position for each sampling time, the VCM drive current is digitally executed by the firmware. The MPU feeds the VCM current via the D/A converter and power amplifier to the disk. 4.7 Servo Control 4.7.4...
Manual/User Guide
Page 70
... to the SVC to W-phase) (after that, repeating this order). The firmware calculates the time for one rotation based on the MPU manufactured by Fujitsu. Then, a current (approx. 0.3 A) flows into the spindle motor. ... motor, and the 3phase full/half-wave analog current control circuit is used for this hard disk drive. The SVC starts a phase switching by sending several signals from the beginning. c) A... to keep the rotational state steady to the SVC. When the rotational speed reaches 5,400 rpm, the SVC enters the stable rotation mode. (3) Stable rotation mode The PLL (FLL) ...
... to the SVC to W-phase) (after that, repeating this order). The firmware calculates the time for one rotation based on the MPU manufactured by Fujitsu. Then, a current (approx. 0.3 A) flows into the spindle motor. ... motor, and the 3phase full/half-wave analog current control circuit is used for this hard disk drive. The SVC starts a phase switching by sending several signals from the beginning. c) A... to keep the rotational state steady to the SVC. When the rotational speed reaches 5,400 rpm, the SVC enters the stable rotation mode. (3) Stable rotation mode The PLL (FLL) ...
Manual/User Guide
Page 104
Buffer Size=8MByte: X'4000' Number of ECC bytes transferred at READ LONG or WRITE LONG command Firmware revision (ASCII code, 8 characters, left) Model name (ASCII code, 40 characters, left) Maximum number of sectors per interrupt on READ/WRITE MULTIPLE command Reserved Capabilities *4 ...
Buffer Size=8MByte: X'4000' Number of ECC bytes transferred at READ LONG or WRITE LONG command Firmware revision (ASCII code, 8 characters, left) Model name (ASCII code, 40 characters, left) Maximum number of sectors per interrupt on READ/WRITE MULTIPLE command Reserved Capabilities *4 ...
Manual/User Guide
Page 175
.... After the designation of rewriting by which data is divided into multiple times is accepted, the device does beginning the data transfer of the device (firmware). 5.3 Host Commands (47) DOWNLOAD MICRO CODE (92H) At command issuance (I/O registers setting contents) 1F7h(CM) 1 0 0 1 0 0 1 0 1F6h(DH) 1 X 1 DV 0 0 0 0 1F5h(CH) 00 1F4h(CL) 00 1F3h...
.... After the designation of rewriting by which data is divided into multiple times is accepted, the device does beginning the data transfer of the device (firmware). 5.3 Host Commands (47) DOWNLOAD MICRO CODE (92H) At command issuance (I/O registers setting contents) 1F7h(CM) 1 0 0 1 0 0 1 0 1F6h(DH) 1 X 1 DV 0 0 0 0 1F5h(CH) 00 1F4h(CL) 00 1F3h...
Manual/User Guide
Page 176
... Transfer of 127 KB from the first Transfer from 128 to 255 KB Transfer from 256 to 383 KB Firmware rewriting execution Transfer of 384 KB Firmware rewriting execution Transfer of 384 KB and Firmware rewriting execution Transfer of 127 KB from the first Transfer from 128 to 255 KB Transfer from 256... to 383 KB and Firmware rewriting execution When the data of the transfer microcode did the rewriting specification with the illegality and the data transfer not done or the DOWNLOAD ...
... Transfer of 127 KB from the first Transfer from 128 to 255 KB Transfer from 256 to 383 KB Firmware rewriting execution Transfer of 384 KB Firmware rewriting execution Transfer of 384 KB and Firmware rewriting execution Transfer of 127 KB from the first Transfer from 128 to 255 KB Transfer from 256... to 383 KB and Firmware rewriting execution When the data of the transfer microcode did the rewriting specification with the illegality and the data transfer not done or the DOWNLOAD ...