SST58LM064-70-C-FSI View Datasheet(PDF) - Silicon Storage Technology
Part Name
Description
Manufacturer
SST58LM064-70-C-FSI Datasheet PDF : 40 Pages
| |||
ATA-Disk Module
SST58SM008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192
SST58LM008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192
Advance Information
At command completion, the Command Block Registers contain the cylinder, head and sector number
of the last sector read.
If an error occurs, the read terminates at the sector where the error occurred. The Command Block
Registers contain the cylinder, head and sector number of the sector where the error occurred. The
flawed data is pending in the sector buffer.
Subsequent blocks or partial blocks are transferred only if the error was a correctable data error. All
other errors cause the command to stop after transfer of the block which contained the error.
3.2.1.10 Read Long Sector - 22H or 23H
Bit ->
7
6
5
4
3
2
1
0
Command (7)
22H or 23H
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)
X
Feature (1)
X
The Read Long command performs similarly to the Read Sector(s) command except that it returns 516
Bytes of data instead of 512 Bytes. During a Read Long command, the ADM does not check the ECC
bytes to determine if there has been a data error. Only single sector read long operations are
supported. The transfer consists of 512 Bytes of data transferred in Word-Mode followed by 4 Bytes of
ECC data transferred in Byte-Mode. This command has the same protocol as the Read Sector(s)
command. Use of this command is not recommended.
3.2.1.11 Read Sectors - 20H or 21H
Bit ->
7
6
5
4
3
2
1
0
Command (7)
20H or 21H
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 reads from 1 to 256 sectors as specified in the Sector Count register. A sector count of
0 requests 256 sectors. The transfer begins at the sector specified in the Sector Number Register.
When this command is issued and after each sector of data (except the last one) has been read by the
host, the ADM sets BSY, puts the sector of data in the buffer, sets DRQ, clears BSY, and generates an
interrupt. The host then reads the 512 Bytes of data from the buffer.
At command completion, the Command Block Registers contain the cylinder, head and sector number
of the last sector read. If an error occurs, the read terminates at the sector where the error occurred.
The Command Block Registers contain the cylinder, head, and sector number of the sector where the
error occurred. The flawed data is pending in the sector buffer.
©2001 Silicon Storage Technology, Inc.
27
S71193-01-000 9/01 519
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