SD Specifications Part 1 UHS-II Simplified Addendum - SD Association

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UHS-II Simplified Addendum Version 1.01©Copyright 2010-2013 SD Card Association6.2.9.2.2 PHY Capabilities RegisterThe table shown below describes PHY Capabilities Register.Location Attrib Register Field Name and Explanation CMDcategory63-40 Rsvd -- Broadcast39-36 RO Device-specific N_LSS_DIRThis field indicates the device-specific number of "DIR" LSS inorder that Rx can recognize to have switched 2L-HD mode. It isindicated in unit of eight (8), and 0000b means 128 (16x8).Larger value is set on the command payload field when receivingINQUIRY_CONFIG. (Note that 0000b is regarded as the largestvalue.)/P2P35-32 RO Device-specific N_LSS_SYNThis field indicates the device-specific number of "SYN" LSS inorder that Rx can recognize as a trigger of synchronization. It isindicated in unit of four (4), and 0000b means 64 (16x4).Larger value is set on the command payload field when receivingINQUIRY_CONFIG. (Note that 0000b is regarded as the largestvalue.)31-16 Rsvd --15 RO Supporting Hibernate ModeThis field indicates whether Device supports Hibernate Mode(refer to Section 6.2.4.2) or not.0b = Not supporting Hibernate Mode1b = Supporting Hibernate ModeSmaller value is set on the command payload field when receivingINQUIRY_CONFIG.14-06 Rsvd --05-04 RO PHY Major RevisionThis field indicates PHY major revision.00b = UHS156 (Maximum speed of a Lane is 1.56Gbps)Others = Reserved.Smaller value is set on the command payload field when receivingINQUIRY_CONFIG03-00 RO PHY Minor RevisionIt is defined incrementally from 0 to 15 and reset to 0 if PHY MajorRevision is updated.No operations take place when receiving INQUIRY_CONFIG.Table 6-8 : PHY Capabilities RegisterApplication Note:Host shall accept Device with any PHY Major Revision. And Host shall use PHY functions whichdefined by minimum capability of PHY Major Revision.e.g. Host whose PHY Major Revision is 00b shall accept Device whose PHY Major Revision is 00bor more. In this case, Host can use PHY functions which are defined in Revision 00b regardless ofDevice's Major Revision.66
UHS-II Simplified Addendum Version 1.01©Copyright 2010-2013 SD Card Association6.2.9.2.3 LINK/TRAN Capabilities RegisterThe table shown below describes LINK/TRAN Capabilities Register.Location Attrib Register Field Name and Explanation CMDcategory63-40 Rsvd -- Broadcast39-32 RO Device-specific N_DATA_GAPThis field indicates device-specific number of DIDL between DATApackets. N_DATA_GAP is finally determined with reference to thisparameter and set in LINK/TRAN Settings Register duringConfiguration.Larger value is set on the command payload field when receivingINQUIRY_CONFIG/P2P31-20 RO Device-specific MAX_BLKLENThis field indicates maximum payload length of one block in bytesupported by the Device (000h is reserved). Block Length is finallydetermined with reference to this parameter (refer to Section6.2.8.2 for more details).If bit 16 in Generic Capabilities Register is equal to 1 ("ApplicationType" is SD-memory), this field shall be 200h (512 bytes).Smaller value is set on the command payload field when receivingINQUIRY_CONFIG.19 Rsvd --18-16 RO Device TypeThis field indicates a type of Device as follows.001b = Host010b = Device011b = Reserved for CMD issuable DeviceOthers = Reserved.No operations take place when receiving INQUIRY_CONFIG.15-08 RO Device-specific N_FCUThis field indicates maximum block number in a flow control unit(FCU) supported by the Device. 00h means 256. N_FCU is finallydetermined with reference to this parameter and set in LINK/TRANSettings Register during Configuration.Smaller value is set on the command payload field when receivingINQUIRY_CONFIG.07-06 Rsvd --05-04 RO LINK/TRAN Major RevisionThis field indicates LINK/TRAN major revision.00b = Compliant to UHS-II Addendum Version 1.0001b = Reserved for the future extensionOthers = Reserved.Smaller value is set on the command payload field when receivingINQUIRY_CONFIG.03-00 RO LINK/TRAN Minor RevisionIt is defined incrementally from 0 to 15 and reset to 0 ifLINK/TRAN Major Revision is updated.No operations take place when receiving INQUIRY_CONFIG.Table 6-9 : LINK/TRAN Capabilities Register67
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SD Specifications Part 1 UHS-II Simplified Addendum - SD Association

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