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HB28D032MM2 датащи(PDF) 13 Page - Renesas Technology Corp

номер детали HB28D032MM2
подробное описание детали  MultiMediaCard 16 MByte/32 MByte/64 MByte/128 MByte
PDF  90 Pages
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производитель  RENESAS [Renesas Technology Corp]
домашняя страница  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

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HB28H016/D032/B064/B128MM2
Rev.5.0, Jan. 2003, page 11 of 88
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.
The CSD Fields
Name
Field
Width
CSD-slice Value
Type
CSD structure
CSD_STRUCTURE
2
[127:126]
“10”
read only
Spec version
SPEC_VERS
4
[125:122]
“0011”
read only
Reserved
—
2
[121:120]
0
read only
Data read access-time-1
TAAC
8
[119:112]
0x0E (1 ms)
read only
Data read access-time-2 in
CLK cycles (NSAC*100)
NSAC
8
[111:104]
0x01 (100 cycles)
read only
Max. data transfer rate
TRAN_SPEED
8
[103:96]
0x2A (20 Mbit/s)
read only
Card command classes
CCC
12
[95:84]
0x0FF (class 0, 1,
2, 3, 4, 5, 6, 7)
read only
Max. read data block length
READ_BLK_LEN
4
[83:80]
0x9 (512 bytes)
read only
Partial blocks for read
allowed
READ_BLK_PARTIAL
1
[79:79]
‘1’ (Enabled)
read only
Write block misalignment
WRITE_BLK_MISALIG
N
1
[78:78]
‘0’ (Disabled)
read only
Read block misalignment
READ_BLK_MISALIGN 1
[77:77]
‘0’ (Disabled)
read only
DSR implemented
DSR_IMP
1
[76:76]
‘0’ (Disabled)
read only
Reserved
—
2
[75:74]
0
read only
Device size
C_SIZE
12
[73:62]
*
1
read only
Max. read current at V
DD min
VDD_R_CURR_MIN
3
[61:59]
*
2
read only
Max. read current at V
DD max
VDD_R_CURR_MAX
3
[58:56]
*2
read only
Max. write current at V
DD min
VDD_W_CURR_MIN
3
[55:53]
*
2
read only
Max. write current at V
DD max VDD_W_CURR_MAX
3
[52:50]
*
2
read only
Device size multiplier
C_SIZE_MULT
3
[49:47]
*
3
read only
Erase group size
ERASE_GRP_SIZE
5
[46:42]
0
read only
Erase group size multiplier
ERASE_GRP_MULT
5
[41:37]
0x0F
read only



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