SST55LD019A Silicon Storage Technology, Inc., SST55LD019A Datasheet - Page 53
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SST55LD019A
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.
Datasheet
1.SST55LD019A.pdf
(76 pages)
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ATA Flash Disk Controller
SST55LD019A / SST55LD019B / SST55LD019C
11.2.1.31 Set-WP_PD#-Mode - 8BH
11.2.1.32 Standby - 96H or E2H
©2004 Silicon Storage Technology, Inc.
Command (7)
Command (7)
This command configures the WP_PD# pin for either the Write Protect mode or the Power-down mode.
When the host sends this command to the device with the value AAH in the feature register, the
WP_PD# pin is configured for the Write Protect mode described in Section 8.1. The Write Protect mode
is the factory default setting. When the host sends this command to the device with the value 55H in the
feature register, WP_PD# is configured for the Power-down mode.
All values in the C/D/H register, the Cylinder Low register, the Cylinder High register, the Sector Number
register, the Sector Count register, and the Feature register need to match the values shown above,
otherwise, the command will be treated as an invalid command.
Once the mode is set with this command, the device will stay in the configured mode until the next time
this command is issued. Power-off or reset will not change the configured mode.
This command causes the ATA Flash Disk Controller to set BSY, enter the Sleep mode (which
corresponds to the ATA “Standby” mode), clear BSY and return the interrupt immediately. Recovery
from sleep mode is accomplished by simply issuing another command (a reset is not required).
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
X
X
6
6
5
5
53
Drive
Drive
4
4
55H or AAH
96H or E2H
8BH
6EH
44H
72H
50H
X
X
X
X
X
3
3
2
2
X
X
Advance Information
1
1
S71241-02-000
0
0
4/04