Status Register - SanDisk SDSDB-32-201-80 - Industrial Grade Flash Memory Card Product Manual

SD Card Interface Description
CSD_STRUCTURE
SD_SPEC—Describes the SD Card Physical Layer Specification version supported by this card.
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.
NOTE: It is mandatory for a Writable SD Card (OTP or R/W) to support Security Protocol.
SD_BUS_WIDTHS—Describes all the DAT bus widths that are supported by this card.
Since SD Card shall support at least the two bus modes 1bit or 4bit width then any SD Card shall set at least bits 0
and 2 (SD_BUS_WIDTH=0101).

3.5.5. Status Register

The SD Card supports the following two card status fields:
3-20
Table 3-24. SCR Register Structure Version
CSD Structure Version
0 SCR version No. 1.0
1-15 reserved
Table 3-25. SD Card Physical Layer Specification Version
SPEC_VERS
Specification Version Number
0 Version 1.0-1.01
1-15 Reserved
Table 3-26. SD Supported Security Algorithm
SD_SECURITY
0
1
2
3 .. 7
Table 3-27. SD Card Supported Bus Widths
SD_BUS_WIDTHS
Bit 0
Bit 1
Bit 2
Bit 3 [MSB]
SanDisk Secure Digital (SD) Card Product Manual, Rev. 1.9 © 2003 SANDISK CORPORATION
Valid for SD Physical Layer
Specification Version
Version 1.0-1.01
Physical Layer
Supported Algorithm
No security
Security protocol 1.0
Security Spec Ver 0.96
Security protocol 2.0
Security Spec Ver 1.0-1.01
Reserved
Supported Bus Widths
1 bit (DAT0)
Reserved
4 bit (DAT0-3)
Reserved