Specifications

©Copyright 2001-2013 SD Group (Panasonic, SanDisk, Toshiba) and SD Card Association
Physical Layer Simplified Specification Version 4.10
126
• SD_SPEC, SD_SPEC3, SD_SPEC4
The Physical Layer Specification Version is indicated in combination with SD_SPEC, SD_SPEC3 and
SD_SPEC4 as described Table 5-19.
SD_SPEC
SD_SPEC3
SD_SPEC4
Physical Layer Specification Version Number
0
0
0
Version 1.0 and 1.01
1
0
0
Version 1.10
2
0
0
Version 2.00
2
1
0
Version 3.0X
2
1
1
Version 4.XX
Others
reserved
(1) Version 2.00 hosts do not recognize SD_SPEC3 and SD_SPEC4.
(2) Version 3.00 hosts do not recognize SD_SPEC4.
Table 5-19: Physical Layer Specification Version
Application Notes:
Hosts recognize Physical Layer Specification Version shall also recognize including future version.
Next version will be defined in SD_SPEC field.
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, SD_SPEC3=0
and SD_SPEC4=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, SD_SPEC3=0
and SD_SPEC4=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, SD_SPEC3=0
and SD_SPEC4=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, SD_SPEC3=1
and SD_SPEC4=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)
User area capacity shall be more than or equal to 32GB and up to 2TB (SDXC)
(5) Speed Class shall be supported (SDHC or SDXC)
• Optional conditions to indicate Version 3.00 Card
A card supports any of following functions shall satisfy essential conditions of Version 3.00 Card
(1) Speed Class supported under the conditions defined in Version 3.00
(2) UHS-I supported card
(3) CMD23 supported card