N2M400FDB311A3CE Datasheet, PDF (11/19 Pages) Micron Technology – e·MMC™ Memory

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Preliminary
4GB, 8GB, 16GB, 32GB: e·MMC
CSD Register
Table 5: CSD Register Field Parameters (Continued)
Name
Maximum write data block
length
Partial blocks for writes suppor-
ted
Reserved
Content protection application
File-format group
Copy flag (OTP)
Permanent write protection
Temporary write protection
File format
ECC
CRC
Not used; always 1
WRITE_BL_LEN
Field
WRITE_BL_PARTIAL
–
CONTENT_PROT_APP
FILE_FORMAT_GRP
COPY
PERM_WRITE_PROTECT
TMP_WRITE_PROTECT
FILE_FORMAT
ECC
CRC
–
Cell
Width Type¹
4
R
CSD
Bits
[25:22]
CSD
Value
9h
1
R
21
0h
4
R
[20:17]
–
1
R
16
0h
1 R/W
15
0h
1 R/W
14
0h
1 R/W
13
0h
1 R/W/E
12
0h
2 R/W [11:10]
0h
2 R/W/E [9:8]
0h
7 R/W/E [7:1]
–
1
–
0
1h
Notes: 1. R = Read-only
R/W = One-time programmable and readable
R/W/E = Multiple writable with value kept after a power cycle, assertion of the RST_n
signal, and any CMD0 reset, and readable
TBD = To be determined
2. Reserved bits should be read as 0.
PDF: 09005aef84a4d6f1
emmc_4gb_8gb_16gb_32gb_100b-it.pdf - Rev. C 7/12 EN
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