[1.01] SD_Card_Spec.pdf

SD Memory Card Specifications PHYSICAL LAYER SPECIFICATION Part 1 April 15 2001 SD Group Matsushita Electric Industrial Co., Ltd. (MEI) SanDisk Corporation Toshiba Corporation Version 1.01 Simplified Version of : DO NOT COPY (c)2000 (c)2001 by SD Group (MEI,SanDisk,Toshiba) 2 Simplified Version Date: April 2001 SD-Memory Card Specifications / Part 1. Physical Layer Specification; Version 1.01 Revision History Date Version Changes compared to previous issue March 22th, 2000 1.0 Base version April 15th, 2001 1.01 Detailed description of the revision history is given in the full version of Spec Ver 1.01. Copyright (C)2000 (C)2001 by SD Group (MEI, SanDisk, Toshiba) - Confidentiality: This document is a simplified version of the original. This version is not required to be treated as confidential and Reproduction in whole or in part is prohibited without prior written permission of SD Group. - Exemption: - Publisher and Copyright Holder: None will be liable for any damage from use of this document. Conditions for publication: SD Group (MEI, SanDisk, Toshiba) . Non Disclosure Agreement with neither the SD Group nor the SDA is required. DO NOT COPY (c)2000 (c)2001 by SD Group (MEI,SanDisk,Toshiba) 3 Simplified Version Date: April 2001 SD-Memory Card Specifications / Part 1. Physical Layer Specification; Version 1.01 1 General description - 4 2 System features - 6 3 SD Memory Card System Concept - 7 3.1 Bus Topology - 7 3.1.1 SD bus - 8 3.1.2 SPI bus - 19 3.2 Bus Protocol - 10 3.2.1 SD bus - 10 3.2.2 SPI Bus - 13 3.3 SD Memory Card - Pins and Registers - 15 3.4 Compatibility to MultiMediaCard - 17 4 SD Memory Card Functional Description - 20 5 Card Registers - 20 6 SD Memory Card Hardware Interface - 20 7 SPI Mode - 20 8 SD