Micron Confidential and Proprietary
4GB, 8GB, 16GB, 32GB, 64GB: e·MMC
CSD Register
Table 5: CSD Register Field Parameters (Continued)
Cell
Width Type1
CSD
Bits
CSD
Value
Name
Field
Reserved
–
4
1
1
1
1
1
2
2
7
1
R
[20:17]
16
–
Content protection application
File-format group
Copy flag (OTP)
Permanent write protection
Temporary write protection
File format
CONTENT_PROT_APP
R
0h
0h
0h
0h
0h
0h
0h
–
FILE_FORMAT_GRP
R/W
R/W
R/W
R/W/E
R/W
R/W/E
R/W/E
–
15
COPY
14
PERM_WRITE_PROTECT
13
TMP_WRITE_PROTECT
12
FILE_FORMAT
[11:10]
[9:8]
[7:1]
0
ECC
ECC
CRC
–
CRC
Not used; always 1
1h
1. R = Read-only
R/W = One-time programmable and readable
Notes:
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: 09005aef84a4d6f8
emmc_4gb_8gb_16gb_32gb_64gb-it.pdf - Rev. D 07/12 EN
Micron Technology, Inc. reserves the right to change products or specifications without notice.
16
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