Pio Data-Out Command Protocol - Fujitsu MHZ2080BJ Product/Maintenance Manual

Interface

5.4.3 PIO data-out command protocol

Execution of the following commands involves data transfers from the host system
to the device:
• WRITE SECTOR (S) (EXT)
•
WRITE MULTI (EXT) (FUA EXT)
•
WRITE BUFFER
• WRITE VERIFY
• SMART WRITE LOG SECTOR
• SECURITY DISABLE PASSWORD
•
SECURITY ERASE UNIT
•
SECURITY SET PASSWORD
• SECURITY UNLOCK
• SET MAX SET PASSWORD
•
SET MAX UNLOCK
•
DOWNLOAD MICROCODE
• WRITE LOG EXT
• DEVICE CONFIGRATION SET
Data of one or more sectors is transferred from the host to the device.
An outline of this protocol is as follows:
1) The device receives a PIO data-out command with the RegHD FIS.
2) If an error remaining in the device prevents command execution, the device
sends the RegDH FIS with 1 set in the I bit.
3) When the device is ready to receive data, it sets 0 in the BSY bit and 1 in the
DRQ bit of the Status field of the PIO Setup FIS. At this time, the device sets
0 in the I bit of the Status field of the PIO Setup FIS for a data transfer to the
first sector, while it sets 1 in the I bit for a data transfer to any sector other
than the first sector. Then, it sends this FIS to the host. In the E_Status field,
the device sets 1 in the BSY bit and 0 in the DRQ bit.
5-180 C141-E280