SanDisk SD032 Manual Página 47

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3-21 SanDisk miniSD Card Product Manual, Rev. 1.1 © 2003 SANDISK CORPORATION
Table 3-23. SCR Register Structure Version
CSD_STRUCTURE CSD Structure Version Valid for SD Physical Layer
Specification Version
0 SCR version No. 1.0 Version 1.0-1.01
1-15 Reserved
SD_SPEC—Describes the miniSD Card Physical Layer Specification version supported by this card.
Table 3-24. mini SD Physical Layer Specification Version
SPEC_VERS Physical Layer
Specification Version Number
0 Version 1.0-1.01
1-15 Reserved
DATA_STAT_AFTER_ERASE—Defines the data status after erase, whether it is ‘0’ or ‘1’ (the status is card
vendor dependent).
SD_SECURITY—Describes the security algorithm supported by the card.
Table 3-25. SD Supported Security Algorithm
SD_SECURITY Supported Algorithm
0 No security
1 Security protocol 1.0
Security Spec Ver 0.96
2 Security protocol 2.0
Security Spec Ver 1.0-1.01
3 ..7 Reserved
NOTE: It is mandatory for a writable miniSD Card (OTP or R/W) to support Security Protocol.
SD_BUS_WIDTHS—Describes all the DAT bus widths that are supported by this card.
Table 3-26. mini SD Supported Bus Widths
SD_BUS_WIDTHS Supported Bus Widths
Bit 0 1 bit (DAT0)
Bit 1 Reserved
Bit 2 4 bit (DAT0-3)
Bit 3 [MSB] Reserved
Since miniSD Card shall support at least two bus-modes: 1bit or 4bit width, then any miniSD Card shall set at least
bits 0 and 2 (SD_BUS_WIDTH=0101).
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