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MC1GU128NBFC-0QC00 Datasheet(数据表) 22 Page - Samsung semiconductor

部件型号  MC1GU128NBFC-0QC00
说明  MultiMediaCard Specification
下载  66 Pages
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制造商  SAMSUNG [Samsung semiconductor]
网页  http://www.samsung.com/Products/Semiconductor
标志 

 22 page
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MultiMediaCard
TM
22
4.5.3 Relative Card Address (RCA)
The 16-bit relative card address register carries the card address assigned by the host during the card
identification. This address is used for the addressed host to card communication after the card
identification procedure. The default value of the RCA register is 0x0001. The value 0x0000 is reserved
to set all cards in Standby State with the command SELECT_DESELECT_CARD (CMD7). The RCA is
programmed with the command SET_RELATIVE_ADDRESS (CMD3) during the initialization
procedure. The content of this register is lost after power down. The default value is assigned when an
internal reset is applied by the power up detection unit of the MultiMediaCard.
4.5.4 Card Specific Data (CSD)
The card specific data register describes how to access the card content. The CSD defines card
operating parameters like maximum data access time, data transfer speed.
Table 4-7 CSD Field
Name
Field
Width
CSD-slice
Value
Type
CSD structure
CSD_STRUCTURE
2
[127:126]
0x2
read only
Spec version
SPEC_VERS
4
[125:122]
0x3
read only
Reserved
--
2
[121:120]
0x0
read only
Data read access-
time-1
TAAC
8
[119:112]
0×26
(1.5 ms)
read only
Data read access-
time-2 in CLK
cycles NAC
*100)
NSAC
8
[111:104]
0×01
(100 cycles)
read only
Max. data transfer
rate
TRAN_SPEED
8
[103:96]
0×2A
(20MHz,Max)
read only
Card command
classes
CCC
12
[95:84]
0×0F5
(Class 0,2,4,5, 6, 7)
read only
Max. read data
block length
READ_BL_LEN
4
[83:80]
0×9(512 bytes)
read only
Partial blocks for
read allowed
READ_BL_PARTIAL
1
[79:79]
0x0(Disabled)
read only
Write block
misalignment
WRITE_BLK_MISALIGN
1
[78:78]
0x0(Disabled)
read only
Read block
misalignment
READ_BLK_MISALIGN
1
[77:77]
0x0 (Disabled)
read only
DSR implemented
DSR_IMP
1
[76:76]
0x0 (Disabled)
read only
Reserved
--
2
[75:74]
0x0
read only
Device size
C_SIZE
12
[73:62]
*1
read only
Max. read current
at VDD min
VDD_R_CURR_MIN
3
[61:59]
*2
read only
Max. read current
at VDD max
VDD_R_CURR_MAX
3
[58:56]
*2
read only
Max. write current
at VDD min
VDD_W_CURR_MIN
3
[55:53]
*2
read only
Max. write current
at VDD max
VDD_W_CURR_MAX
3
[52:50]
*2
read only




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