SanDisk 2GB - 2GB Micro Secure Digital Card Product Manual page 19

SanDisk microSD™, microSDHC™ and microSDXC™ cards
Field
CSD_STRUCTURE
-
TAAC
NSAC
TRANS_SPEED
CCC
READ_BL_LEN
READ_BL_PARTIAL
WRITE_BLK_MISALIGN
READ_BLK_MISALIGN
DSR_IMP
-
C_SIZE
1 GB
2 GB
VDD_R_CURR_MIN
VDD_R_CURR_MAX
VDD_W_CURR_MIN
VDD_W_CURR_MAX
C_SIZE_MULT
ERASE_BLK_EN
SECTOR_SIZZE
WP_GRP_SIZE
WP_GRP_ENABLE
Reserved
R2W_FACTOR
WRITE_BL_LEN
WRITE_BL_PARTIAL
-
FILE_FORMAT_GRP
COPY
PERM_WRITE_PROTECT
TMP_WRITE_PROTECT
FILE_FORMAT
Reserved
CRC
-
January 2012 Version 2.5 © 2008 - 2012 SanDisk Corporation. SanDisk Confidential, subject to all applicable non-disclosure agreements 14
Table 8: CSD Register (CSD Version 1.0)
Typical CSD Value
1.0
-
1.5 msec
0
Standard Mode 25 MHz
High Performance Mode 50MHz
Ultra High Speed Mode-I
104MHz
All (inc. WP, lock/unlock)
2G = 0xA
Up to 1G – 0x9
Yes
No
No
No
-
Secured
0xF22
0xF24
100 mA
80 mA
100 mA
80 mA
2G=2048
1G-1024
Yes
31 blocks
127 sectors
Yes
-
X16
0x9
No
-
0
Has been copied
Not protected
Not protected
HD w/partition
-
CRC7
-
OEM Product Manual
Description
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
DSR implemented
Reserved
Device size
Maximum read current @V
DD
Maximum read current @V
DD
Maximum write current @V
DD
Maximum write current @V
DD
Device size multiplier
Erase single block enable
Erase sector size
Write protect group size
Write protect group enable
Reserved for MMC compatibility
Write speed factor
Maximum write data block length
Partial blocks for write allowed
Reserved
File format group
Copy flag (OTP)
Permanent write protection
Temporary write protection
File format
Reserved
CRC
Not used, always "1"
2.5
min
max
min
max