N2M400FDB311A3CE Datasheet, PDF (9/19 Pages) Micron Technology – e·MMC™ Memory

Micron Confidential and Proprietary
Preliminary
CID Register
4GB, 8GB, 16GB, 32GB: e·MMC
CID Register
The card identification (CID) register is 128 bits wide. It contains the device identifica-
tion information used during the card identification phase as required by e·MMC proto-
col. Each device is created with a unique identification number.
Table 4: CID Register Field Parameters
Name
Manufacturer ID
Reserved
Card/BGA
OEM/application ID
Product name
Field
MID
–
CBX
OID
PNM
Product revision
Product serial number
Manufacturing date
CRC7 checksum
Not used; always 1
PRV
PSN
MDT
CRC
–
Width
8
6
2
8
48
CID Bits
[127:120]
[119:114]
[113:112]
[111:104]
[103:56]
8
[55:48]
32
[47:16]
8
[15:8]
7
[7:1]
1
0
CID Value
FEh
–
01h
–
MMC04G
MMC08G
MMC16G
MMC32G
–
–
–
–
–
PDF: 09005aef84a4d6f1
emmc_4gb_8gb_16gb_32gb_100b-it.pdf - Rev. C 7/12 EN
9
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