ATA-Disk Module
SST58SM008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192
SST58LM008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192
Advance Information
3.2.1.12 Read Verify Sector(s) - 40H or 41H
Bit ->
7
6
5
4
3
2
1
0
Command (7)
40H or 41H
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
This command is identical to the Read Sectors command, except that DRQ is never set and no data is
transferred to the host. When the command is accepted, the ADM sets BSY.
When the requested sectors have been verified, the ADM clears BSY and generates an interrupt. Upon
command completion, the Command Block Registers contain the cylinder, head, and sector number of the last
sector verified.
If an error occurs, the verify 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 Sector Count Register
contains the number of sectors not yet verified.
3.2.1.13 Recalibrate - 1XH
Bit ->
7
6
5
4
3
2
1
0
Command (7)
1XH
C/D/H (6)
1
LBA
1
Drive
X
Cyl High (5)
X
Cyl Low (4)
X
Sec Num (3)
X
Sec Cnt (2)
X
Feature (1)
X
This command is effectively a NOP command to the ADM and is provided for compatibility purposes.
3.2.1.14 Seek - 7XH
Bit ->
7
6
5
4
3
2
1
0
Command (7)
7XH
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)
X (LBA 7-0)
Sec Cnt (2)
X
Feature (1)
X
This command is effectively a NOP command to the ADM although it does perform a range check of
cylinder and head or LBA address and returns an error if the address is out of range.
©2001 Silicon Storage Technology, Inc.
28
S71193-01-000 9/01 519