Fujitsu MHV2200BT Product Manual page 94

Interface
FIS Type -
Cyl Low -
Cyl Low (exp) -
Cyl High -
Cyl High (exp) -
D -
Dev / Head -
Dev / Head (exp) - Contains the contents of the expanded address field of the
E_Status -
Error -
I -
R -
Sector Count -
Sector Count (exp) - Contains the contents of the expanded address field of the
Sector Number -
Sector Num (exp) - Contains the contents of the expanded address field of the
Status -
Transfer Count -
5-22
Set to a value of 5Fh. Defines the rest of the FIS fields.
Defines the length of the FIS as five Dwords.
Holds the contents of the cylinder low field of the Command
Block.
Contains the contents of the expanded address field of the
Shadow Register Block.
Holds the contents of the cylinder high field of the
Command Block.
Contains the contents of the expanded address field of the
Shadow Register Block.
Indicates whether host memory is being written or read by
the device.
1 = write (device to host), 0 = read (host to device).
Holds the contents of the device / head field of the
Command Block.
Shadow Register Block
Contains the new value of the status field of the task file
block for correct synchronization of data transfers to host.
Contains the new value of the Error field of the Command
Block at the conclusion of all subsequent Data to Device frames.
Interrupt bit. This bit reflects the interrupt bit line of the device
Reserved (0)
Holds the contents of the sector count field of the Command
Block.
Shadow Register Block
Holds the contents of the sector number field of the
Command Block.
Shadow Register Block
Contains the new value of the status field of the Command
Block at the conclusion of all subsequent PIO Data to Device
frames.
Holds the number of bytes to be transferred in the
subsequent data FIS.
C141-E244