Sd Card

SD Card Specification
Model Name :
KP032S3CBS KP032S3CCS KP064S3DAS KP128S3EMS KP256S3EMS KP256S3FMS KP512S3EMS KP512S3FMS KP01GS3FMS

Ver 1.1 07.08.200
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Features
n Capcity:32MB/64MB/128MB/256M/512MB/1GByte n n Compliant Specification Ver 1.01 n On card error correction n Support CPRM n Two alternative communication protocols: SD mode and SPI mode n Variable clock rate 0~25MHz. nVoltage range for communication: 2.0~3.6V for operating :2.7~3.6V. n n Low power consumption : automatic powe r down and automatic wake up, smart power management n n No external programming voltage required. n n Damage free powered card insertion and removal n n Forward compatibility to MultiMedia Card. n High speed serial interface with random access ---support dual channels with interleave for flashmemory. ---QuickWruteT M Technology: a cost-effective solution with ultra high performance of flash access time and high reliability of data storage. ---Max. Read/Write rate :10Mbyte/s Up to 10 stacked card(at 20MHZ,VCC=2.7~3.6V) Data Endurance: 100k Program/Erase Cycles CE and FCC certificates PIP package Technology Dimension: 24mm(W)x32mm(L)x1.4mm(T)

Description
These SD cards are highlyintegrated flash memories with serial and random access capability. It is accessible via a dedicated serial interface optimized for fast and reliable data transmission. This interface allows several cards to be stacked by through connecting their peripheral contacts. These SD cards are fully compatible to a new consumer standard, called the SD Card system standard define in the SD card Systemspecification. The SD card system is a new mass-storage system based on innovations in semiconductor technology. It has been developed to provide an inexpensive, mechanically robust storage medium in card form for multimedia consumer applications. SD card allows the design of inexpensive players and drivers without moving parts. A low power consumption and a wide supply voltage range favors mobile,battery-powered application such as audio players, organizers, palmtops, electronic books, encyclopedia and dictionaries. Using very effective data compression schemes such as MPEG, the SD card will deliver enough capacity for all kinds of multimedia data.

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Block Diagram

VDD
CMD DAT2 CD/DAT3 CLK
Interface driver

DAT 0 DAT1

Internal Clock

OCR[31:0] CID[127:0]
Power on det ec tionRCA[15:0] DSR[15:0] CSD[127:0] SCR[63: 0]

Card interface controller

Memory core interface

Memory core

All units these SD card are clocked by an internal clock generator. The interface driver unit synchronizes the DAT and CMD signals from external CLK to the internal used clock signal. The card is controlled by the six line SD card interface containing the signals:CMD,CLK,DAT0~DAT3. For the identification of the SD card in a stack of SD card, a card identification register(CID) and a relative and address register(RCA) is foreseen. An additional register contain different types of operation parameter. This register is called(CSD). The communication using the SD card lines to access either the memory field or the register is defined by the SD card standard. The card has itsown power on detected unit. No additional master reset signal is required to setup the card after power on. It is protected against short circuit during insertion and removal while the SD card system is power up. No external programming Voltage supply is required. The programming voltage is generated on card. These SD card support a second interface operation mode the SPI interface mode. The SPImode is active if the CS signal is asserted(negative) during the reception of the reset command(CMD0).

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Interface
These SD Card interface can operate in two different modes: . SD Card mode . SPI mode Host system can choose either one of modes. SD Card mode allow the 4-bit high performance data transfer. SPI mode allows easy and common interface for SPI channel. The disadvantage of this...