SST55LD019A Silicon Storage Technology, Inc., SST55LD019A Datasheet - Page 55

• Manufacturer Part Number: SST55LD019A
• Description: Ata Flash Disk Controllersst's Ata Flash Disk Controller is The Heart of a High Performance, Flash Media-based Data Storage System. The Ata Flash Disk Controller Recognizes The Control, Address, And Data Signals on The Ata/ide Bus And Translates Them
• Manufacturer: Silicon Storage Technology, Inc.

ATA Flash Disk Controller
SST55LD019A / SST55LD019B / SST55LD019C
11.2.1.35 Write-Buffer - E8H
11.2.1.36 Write-DMA - CAH
©2004 Silicon Storage Technology, Inc.
Command (7)
Command (7)
The Write-Buffer command enables the host to overwrite contents of the ATA Flash Disk Controller’s
sector buffer with any data pattern desired. This command has the same protocol as the Write-
Sector(s) command and transfers 512 Bytes.
This command executes in a similar manner to Write-Sector(s) except for the following:
- the host initializes the DMA channel prior to issuing the command;
- data transfers are qualified by DMARQ and are performed by the DMA channel;
- the ATA Flash Disk Controller issues only one interrupt per command to indicate that data transfer has
terminated and status is available. During the execution of a WRITE DMA command, the ATA Flash
Disk Controller will provide status of the BSY bit or the DRQ bit until the command is completed.
Sec Num (3)
Sec Num (3)
Cyl High (5)
Cyl High (5)
Cyl Low (4)
Cyl Low (4)
Sec Cnt (2)
Sec Cnt (2)
Feature (1)
Feature (1)
C/D/H (6)
C/D/H (6)
Bit ->
Bit ->
7
7
1
LBA
X
6
6
5
5
1
55
Cylinder High (LBA 23-16)
Sector Number (LBA 7-0)
Cylinder Low (LBA 15-8)
Drive
Drive
4
4
Sector Count
CAH
E8H
X
X
X
X
X
X
3
3
Head (LBA 27-24)
2
2
X
Advance Information
1
1
S71241-02-000
0
0
4/04