Transcend TS8GUSDHC10 Datasheet download pdf (Page 21)

High Capacity microSD Class10 Card

Transcend Information Inc.

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SD_SPEC

Describes the SD Memory Card Physical Layer Specification version supported by this card.

SD_SPEC Physical Layer Specification Version Number

0 Version 1.0-1.01

1 Version 1.10

Version 2.00 or Version 3.00

(Refer to SD_SPEC3)

3-15 reserved

Physical Layer Specification Version

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SD_SPEC3

SD_SPEC

SD_SPEC3

Physical Layer Specification Version Number

Version 2.00

Version 3.00

The card manufacturer determines SD_SPEC value by conditions indicated below. All conditions shall

be satisfied for each version. The other combination of conditions is not allowed.

Essential conditions to indicate Version 1.01 Card (SD_SPEC=0 and SD_SPEC3=0)

(1)The card does not support CMD6

(2)The card does not support CMD8

(3) User area capacity shall be up to 2GB

Essential conditions to indicate Version 1.10 Card (SD_SPEC=1 and SD_SPEC3=0)

(1) The card shall support CMD6

(2) The card does not support CMD8

(3) User area capacity shall be up to 2GB

Essential conditions to indicate Version 2.00 Card (SD_SPEC=2 and SD_SPEC3=0)

(1) The card shall support CMD6

(2) The card shall support CMD8

(3) The card shall support CMD42

(4) User area capacity shall be up to 2GB (SDSC) or 32GB (SDHC)

(5) Speed Class shall be supported (SDHC)

 Essential conditions to indicate Version 3.00 Card (SD_SPEC=2 and SD_SPEC3=1)

(1) The card shall support CMD6

(2) The card shall support CMD8

(3) The card shall support CMD42

(4) User area capacity shall be up to 2GB (SDSC) or 32GB (SDHC) User area capacity shall be more than

or equal to 32GB and up to 2TB (SDXC)

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Transcend TS8GUSDHC10 Datasheet Page 21