NAND08GAH0A Datasheet, PDF (63/116 Pages) Numonyx B.V – 1 Gbyte, 2 Gbyte, 1.8 V/3 V supply, NAND Flash memories with MultiMediaCard™ interface

NAND08GAH0A, NAND16GAH0D
Device registers
8.3.22
8.3.23
8.3.24
8.3.25
8.3.26
8.3.27
8.3.28
WRITE_BL_LEN
Block length for write operations. See READ_BL_LEN for field coding.
WRITE_BL_LEN
Block length for write operations. See Section 8.3.7: READ_BL_LEN for field coding.
Note that the support for 512 byte write access is mandatory for all cards. And that the cards
has to be in 512 byte block length mode by default after power-up, or software reset. The
purpose of this register is to indicate the maximum write data block length supported.
Defines whether partial block sizes can be used in block write commands.
● NAND08GAH0A and NAND16GAH0D (densities ≤2 Gbytes, byte access mode):
– WRITE_BL_PARTIAL=’0’ means that only the 512 bytes and the WRITE_BL_LEN
block size can be used for block oriented data write.
– WRITE_BL_PARTIAL=’1’ means that smaller blocks can be used as well. The
minimum block size is one byte.
FILE_FORMAT_GRP
Indicates the selected group of file formats. This field is read-only for ROM. The usage of
this field is shown in Table 46: File formats.
COPY
Defines if the contents is original (= ‘0’) or has been copied (=‘1’). The COPY bit for OTP and
MTP devices, sold to end consumers, is set to ‘1’ which identifies the device contents as a
copy. The COPY bit is a one-time-programmable bit.
PERM_WRITE_PROTECT
Permanently protects the whole device content against overwriting or erasing (all write and
erase commands for this device are permanently disabled). The default value is ‘0’, i.e. not
permanently write protected.
TMP_WRITE_PROTECT
Temporarily protects the whole device content from being overwritten or erased (all write
and erase commands for this device are temporarily disabled). This bit can be set and reset.
The default value is ‘0’, i.e. not write protected.
CONTENT_PROT_APP
This field in the CSD indicates whether the content protection application is supported.
MultiMediaCards which implement the content protection application will have this bit set to
‘1’.
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