Transcend Information TS1~2GUSD-S3 - Manual (Page 20)

T T T S S S 1 1 1 ~ ~ ~ 2 2 2 G G G U U U S
S S D
D D -
- - S
S S 3
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microSD Memory Card + Reader S3
Transcend Information Inc. 20
• 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.
Security Protocol 1.0 relates to Security Specification Version 0.96.
Security Protocol 2.0 relates to Security Specification Version 1.0.-1.01
Note that it is mandatory for a regular writable SD Memory Card to support Security Protocol. For ROM (Read Only) and
OTP (One Time Programmable) type of SD Memory Card the security feature is optional
• SD_BUS_WIDTHS
Describes all the DAT bus widths that are supported by this card.
Since SD Memory 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").