參數(shù)資料
型號： HB28D032MM2
廠商： Hitachi,Ltd.
英文描述： MultiMediaCard 16 Mbyte/32 Mbyte/64 Mbyte/128 MByte
中文描述： 多媒體16 Mbyte/32 Mbyte/64 Mbyte/128字節(jié)
文件頁數(shù)： 11/88頁
文件大?。?/td> 329K
代理商： HB28D032MM2
HB28E016/D032/D064/B128MM2
11
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
”
ead only
Spec version
SPEC_VERS
4
125:122]
“
0011
”
ead only
Reserved
—
2
121:120]
0
ead only
Data read access-time-1
TAAC
8
119:112]
0x0E (1 ms)
ead only
Data read access-time-2 in
CLK cycles (NSAC*100)
NSAC
8
111:104]
0x01 (100 cycles)
ead only
Max. data transfer rate
TRAN_SPEED
8
103:96]
0x2A (20 Mbit/s)
ead only
Card command classes
CCC
12
95:84]
0x0FF (class 0, 1,
2, 3, 4, 5, 6, 7)
ead only
Max. read data block length
READ_BLK_LEN
4
83:80]
0x9 (512 bytes)
ead only
Partial blocks for read
allowed
READ_BLK_PARTIAL
1
79:79]
‘
1
’
(Enabled)
ead only
Write block misalignment
WRITE_BLK_MISALIG
N
1
78:78]
‘
0
’
(Disabled)
ead only
Read block misalignment
READ_BLK_MISALIGN 1
77:77]
‘
0
’
(Disabled)
ead only
DSR implemented
DSR_IMP
1
76:76]
‘
0
’
(Disabled)
ead only
Reserved
—
2
75:74]
0
ead only
Device size
C_SIZE
12
73:62]
*
1
ead only
Max. read current at V
DD
min VDD_R_CURR_MIN
Max. read current at V
DD
max VDD_R_CURR_MAX
Max. write current at V
DD
min VDD_W_CURR_MIN
Max. write current at V
DD
max VDD_W_CURR_MAX
Device size multiplier
3
61:59]
*
2
ead only
3
58:56]
*
2
ead only
3
55:53]
*
2
ead only
3
52:50]
*
2
ead only
C_SIZE_MULT
3
49:47]
*
3
ead only
Erase group size
ERASE_GRP_SIZE
5
46:42]
0
ead only
Erase group size multiplier
ERASE_GRP_MULT
5
41:37]
0x0F
ead only
相關(guān)PDF資料
PDF描述
HB28D064MM2 MultiMediaCard 16 Mbyte/32 Mbyte/64 Mbyte/128 MByte
HB28E016MM2 MultiMediaCard 16 Mbyte/32 Mbyte/64 Mbyte/128 MByte
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HB28C048C6 CompactFlash⑩
HB28C016A6 FLASH ATA Card
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