Data Sheet 01.000
June 2011
These specifications are subject to change without notice. 06/15/2011
© 2011 Greenliant Systems 8 S71431
GLS85LP0512P / 1002P / 1004P / 1008P
Industrial Grade PATA NANDrive™
5.0 CONFIGURABLE WRITE PROTECT
/ POWER-DOWN MODES
The WP#/PD# pin can be used for either Write Protect
mode or Power-down mode, but only one mode is
active at any time. Either mode can be selected
through the host command, Set-WP#/PD#-Mode.
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.
5.1 Write Protect Mode
When the device is configured in the Write Protect
mode, the WP#/PD# pin offers extended data
protection. This feature can be either selected through
a jumper or host logic to protect the stored data from
inadvertent system writes or erases, and viruses. The
Write Protect feature protects the full address space
of the data stored on the flash media.
In the Write Protect mode, assert the WP#/PD# pin
prior to issuing all destructive commands: Write-DMA,
Write-Multiple, Write-Sector(s) or Write-Verify. This
will force the PATA NANDrive to reject any destructive
commands from the ATA interface. All destructive
commands will return 51H in the Status register and
04H in the Error register signifying an invalid
command. All non-destructive commands will be
executed normally.
5.2 Power-down Mode
When the device is configured in the Power-down
mode, if the WP#/PD# pin is asserted during a
command, the PATA NANDrive stops the ongoing
command and immediately enters Power-down mode.
Afterwards, the device will not accept any other
commands. Both software reset and hardware reset
will bring the device to normal operation with the
WP#/PD# pin de-asserted.
5.3 Security Erase
The PATA NANDrive supports purge and security
erase features
3)
3) For implementation on the security erase feature, please
refer to the “NANDrive™ & 55LD040M Controller Security
Erase Feature / Purge Command” application note. A
signed NDA is required to receive this application note.
6.0 POWER-ON INITIALIZATION
The PATA NANDrive is self-initialized during the first
power-up. As soon as the power is applied to the
PATA NANDrive it reports busy for typically up to
seven seconds while performing search for bad blocks
search and low-level format. This initialization is a
one-time event.
During the first self-initialization, the PATA NANDrive
firmware scans all connected flash media devices and
reads their device ID. If the device ID matches the
listed flash media devices, the PATA NANDrive
performs drive recognition based on the algorithm
provided by the flash media suppliers, including
setting up the bad block table, executing all the
necessary handshaking routines for flash media
support and performing the low-level format.
If the drive initialization fails and a visual inspection is
unable to determine the problem, Greenliant provides
a comprehensive interface for manufacturing flow
debug. This interface not only allows debug of the
failure and manual reset of the initialization process,
but also allows customization of user definable
options.
7.0 ATA/IDE HOST INTERFACE
The ATA/IDE host interface can be used for PATA
NANDrive manufacturing support. Greenliant provides
an example of a DOS- and Windows™-based solution
(an executable routine) for manufacturing debug and
rework.
7.1 Serial Communication Interface
(SCI)
For additional manufacturing flexibility, the SCI bus
can be used for manufacturing error reporting and for
accessing the status of the controller’s internal
activities. The SCI consists of three active signals:
SCIDOUT, SCIDIN and SCICLK. Always provide
access to the SCI port in the PCB design to aid in
design validation.
8.0 LIFETIME EXPECTANCY
The PATA NANDrive with advanced NAND
management technology significantly extends the life
of a product with its extensive ECC and advanced
wear-leveling algorithms.
For applications where data security is essential, the
PATA NANDrive with advanced NAND management
technology offers two additional protection features -
protection zones and password protections.
Protection Zones - Up to four independent protection
zones can be enabled as either Read-only or Hidden
(Read/Write protected). If the zones are not enabled,
the data is unprotected (default configuration).
Password Protection - Requires a customer-unique
password to access information within the protected
zones.