Owner manual

300/300-P Series Industrial Grade SSD Product Manual v2.0Cactus Technologies
®
38
5.1.30. Write Verify Sector(s)-3CH
The Write Verify Sector(s) command in Table 5-43 writes and veries from 1 to 256 sectors as
specied in the Sector Count Register. A sector count of zero requests 256 sectors. The transfer
begins at the sector specied in the Sector Number Register. When this command is accepted, the
drive sets BSY, then sets DRQ and clears BSY, then waits for the host to ll the sector buer with the
data to be written. No interrupt is generated to start the rst buer ll operation. No data should be
transferred by the host until BSY has been cleared by the host.
Bit -> 7 6 5 4 3 2 1 0
Command (7)
3CH
C/D/H (6)
1 LBA 1 Drive Head (LBA 27-24)
Cyl High (5)
Cylinder High (LBA 23-16)
Cyl Low (4)
Cylinder Low (LBA 15-8)
Sec Num (3)
Sector Number (LBA 7-0)
Sec Cnt (2)
Sector Count
Feature (1)
X
Table 5-43. Write Verify Sectors
For multiple sectors, after the rst sector of data is in the buer, BSY will be set and DRQ will
be cleared. After the next buer is ready for data, BSY is cleared, DRQ is set and an interrupt is
generated. When the nal sector of data is transferred, BSY is set and DRQ is cleared. It will remain
in this state until the command is completed at which time BSY is cleared and an interrupt is
generated.
If an error occurs during a write of more than one sector, writing terminates at the sector where the
error occurs. The Command Block Registers contain the cylinder, head and sector number of the
sector where the error occurred. The host may then read the command block to determine what
error has occurred, and on which sector.
Error Posting
5.2.
Table 5-44 summarizes the valid status and error value for all the ATA Command set.
Command
Error Register Status Register
BBK UNC IDNF ABRT AMNF DRDY DWF DSC CORR ERR
Check Power Mode
V V V V V
Execute Drive
Diagnostic(
1
)
V V V
Erase Sector(s)
V V V V V V V V
Format Track
V V V V V V V
Identify Drive
V V V V V
Idle
V V V V V
Idle Immediate
V V V V V
Table 5-44. Error and Status Register