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SMS01GAF 데이터시트(PDF) 33 Page - Numonyx B.V

부품명 SMS01GAF
상세설명  64 MByte, 128 MByte, 256 MByte 512 MByte and 1 GByte, 3.3V Supply Secure Digital??Card
PDF  61 Pages
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제조업체  NUMONYX [Numonyx B.V]
홈페이지  http://www.numonyx.com
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SMS01GAF 데이터시트(HTML) 33 Page - Numonyx B.V

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SMSxxxAF, SMSxxxFF, SMSxxxBF
Card registers
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5.3
CSD Register
The Card Specific Data Register provides information on how to access the card contents.
The CSD Register defines the data format, error correction type, maximum data access
time, data transfer speed, whether the DSR register can be used etc. The programmable
register parameters (entries with cell type W or R, listed in Table 22) can be changed using
CMD27.
Table 22.
CSD Fields Compatible with CSD Structure V1 / MM Card Specification V2.11
Name
Field
Width
Cell Type(1)
CSD-slice
CSD structure
CSD_STRUCTURE
2
R
[127:126]
reserved
-
6
R
[125:120]
data read access-time-1
TAAC
8
R
[119:112]
data read access-time-2 in CLK cycles
(NSAC*100)
NSAC
8
R
[111:104]
Max. data transfer rate
TRAN_SPEED
8
R
[103:96]
card command classes
CCC
12
R
[95:84]
Max. read data block length
READ_BL_LEN
4
R
[83:80]
partial blocks for read allowed
READ_BL_PARTIAL
1
R
[79:79]
write block misalignment
WRITE_BLK_MISALIGN
1
R
[78:78]
read block misalignment
READ_BLK_MISALIGN
1
R
[77:77]
DSR implemented
DSR_IMP
1
R
[76:76]
reserved
-
2
R
[75:74]
device size
C_SIZE
12
R
[73:62]
Max. read current @VDD min
VDD_R_CURR_MIN
3
R
[61:59]
Max. read current @VDD max
VDD_R_CURR_MAX
3
R
[58:56]
Max. write current @VDD min
VDD_W_CURR_MIN
3
R
[55:53]
Max. write current @VDD max
VDD_W_CURR_MAX
3
R
[52:50]
device size multiplier
C_SIZE_MULT
3
R
[49:47]
erase single block enable
ERASE_BLK_EN
1
R
[46:46]
sector size
SECTOR_SIZE
7
R
[45:39]
write protect group size
WP_GRP_SIZE
7
R
[38:32]
write protect group enable
WP_GRP_ENABLE
1
R
[31:31]
reserved for MultiMediaCard
compatibility
-
2
R
[30:29]
write speed factor
R2W_FACTOR
3
R
[28:26]
Max. write data block length
WRITE_BL_LEN
4
R
[25:22]
partial blocks for write allowed
WRITE_BL_PARTIAL
1
R
[21:21]
reserved
-
5
R
[20:16]
File format group
FILE_FORMAT_GRP
1
R/W(1)
[15:15]
copy flag (OTP)
COPY
1
R/W(1)
[14:14]
permanent write protection
PERM_WRITE_PROTECT
1
R/W(1)
[13:13]



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