Fujitsu MHY2200BH, MHY2160BH, MHY2250BH, MHY2100BH, MHY2120BH manual PIO data-out command protocol

5.4 Command Protocol

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.

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