SDSDM-64-J SanDisk, SDSDM-64-J Datasheet - Page 28

• Manufacturer Part Number: SDSDM-64-J
• Description: MEMORY CARD MINI SD 64MB
• Manufacturer: SanDisk

Specifications of SDSDM-64-J

• Memory Size: 64MB
• Memory Type: Memory Card - miniSD™
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

07/07, Rev. 2.1
Interface Description
Card Specific Data Register
Table 3-4
The Card Specific Data (CSD) Register configuration information is required to access card
data. The CSD defines the data format, error correction type, maximum data access time, etc.
The field structures of the CSD Register vary depending on the physical specifications and
card capacity. The CSD_STRUCTURE field in the CSD Register indicates which structure
version is used. Table 3-5 shows the version number as it relates to the CSD structure. Refer to
Section 5.3.1 of the SDA Physical Layer Specification, Version 2.00 for more information.
Table 3-5
Table 3-6 provides an overview of the CSD Register. More field-specific information can be
found in Section 5.3.2 of the SDA Physical Layer Specification, Version 2.00.
Table 3-6
Serial Number
(PSN)
Reserved
Manufacture Date
Code (MDT)
CRC7 Checksum
(CRC)
No use, always 0
CSD_STRUCTURE
TAAC
NSAC
TRANS_SPEED
CCC
READ_BL_LEN
READ_BL_PARTIAL
WRITE_BLK_MISALIGN
READ_BLK_MISALIGN
CSD_STRUCTURE
Name
2-3
0
1
Field
—
CID Register Definitions
CSD Register Structure
CSD Register (CSD Version 1.0)
Binary
Binary
Type
BCD
—
—
CSD Structure Version
1.0
—
1.5 msec
0
Standard Mode 25MHz
High Performance Mode 50MHz
All (inc. WP, lock/unlock)
2G = 0xA
Up to 1G = 0x9
Yes
No
No
3-6
CSD Version 1.0
CSD Version 2.0
Width
32
12
4
7
1
Reserved
CSD Value
Product Serial Number
Manufacture date (for example,
April 2001=0x014)
CRC7
SanDisk SD Card Product Family Product Manual
CID Value
—
—
CSD structure
Reserved
Data read access-time-1
Data read access-time-2 in CLK
cycles (NSAC*100)
Maximum data transfer rate
Card command classes
Maximum read data block length
Partial blocks for read allowed
Write block misalignment
Read block misalignment
Version 2.00/Standard Capacity
Specification Version / Card
Valid for SD Card Physical
Version 2.00/High Capacity
Version 1.01 to 1.10
© 2007 SanDisk Corporation
Description
Capacity
32-bit unsigned
integer
Manufacturing
date-yym (offset
from 2000)
Calculated
—
Comments
—
—