MD2534-D2G-X-P SanDisk, MD2534-D2G-X-P Datasheet - Page 29

• Manufacturer Part Number: MD2534-D2G-X-P
• Description: IC MDOC H3 2GB FBGA
• Manufacturer: SanDisk

Specifications of MD2534-D2G-X-P

• Format - Memory: FLASH
• Memory Type: FLASH - Nand
• Memory Size: 2G (256M x 8)
• Interface: Parallel
• Voltage - Supply: 1.65 V ~ 1.95 V, 2.5 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 115-TFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Speed: -

4.
4.1.1
Data and code protection is implemented on a per-partition basis. The user can configure each
partition as read protected, write protected, or read and write protected.
A protected partition may be protected by either/both of these mechanisms:
• Up to 128-byte protection key
• Hard-wired LOCK# signal
• Sticky lock (SLOCK)
In order to set or remove read/write protection, the protection key must be used as follows:
• Insert the protection key to remove read/write protection
• Remove the protection key to set read/write protection
The only way to read or write from/to a partition that is protected against read or write, is to insert
the key. This is also true for modifying its attributes (protection key, read, write and lock).
Read/write access is disabled (the key is automatically removed) in each of the following events:
• Power-down
• Removal of the protection key
For further information on protection, please refer to the DOC Driver Software Development Kit
(SDK) developer guide.
4.1.2 LOCK# signal
mDOC H3 has an additional hardware safety measure. If the Lock option is enabled for a specific
partition, and the LOCK# signal is asserted, the protected partition has an additional hardware
lock that prevents read/write access to the partition, even with the use of the correct protection
key.
4.1.3
It is possible to set the Lock protection for one session only; that is, until the next power-up or
reset. This Sticky Lock feature can be useful when the boot code in the boot partition must be
read/write protected. Upon power-up, the boot code must be unprotected so the CPU can run it
directly from mDOC H3. At the end of the boot process, protection can be set until the next
power-up or reset. This is done by setting the Sticky Lock (SLOCK) bit in the Software Lock
register,or using a dedicated S/W API, and has the same effect as asserting the LOCK# signal.
Once set, SLOCK can only be cleared by asserting the RSTIN# input. Like the LOCK# input,
assertion of this bit prevents the protection key from disabling the protection for a given partition.
There is no need to mount the partition prior to this operation.
4.1.4
Each mDOC H3 is assigned a 16-byte UID number. Burned onto the flash during production, the
UID cannot be altered and is worldwide unique. The UID is essential for security-related
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D
Read/Write-Protected partitions
Sticky Lock (SLOCK)
Unique Identification (UID) Number
ATA
P
ROTECTION AND
Data Sheet (Preliminary) Rev. 0.2
S
ECURITY
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NABLING FEATURES
mDOC H3 Embedded Flash Drive
92-DS-1205-10