參數(shù)資料
型號(hào)： flas00xx
廠商： SIEMENS AG
英文描述： MultiMediaCard(多媒體卡)
中文描述： 多媒體卡（多媒體卡）
文件頁數(shù)： 58/79頁
文件大?。?/td> 516K
代理商： FLAS00XX
MultiMediaCard Flash
Preliminary MultiMediaCard Product Manual;
1998 SANDISK CORPORATION
Page 58 of 79
VDD_R_CURR_MIN, VDD_W_CURR_MIN
—The minimum values for read and write
currents on VDD power supply are coded as follows:
Table 5-21 VDD, min Current Consumption
VDD_R_CURR_MIN
VDD_W_CURR_MIN
Code For Current Consumption @ V
DD
2:0
0=0.5mA; 1=1mA; 2=5mA; 3=10mA; 4=25mA; 5=35mA; 6=60mA; 7=100mA
VDD_R_CURR_MAX, VDD_W_CURR_MAX
—The maximum values for read and write
currents on VDD power supply are coded as follows:
Table 5-22 VDD , max. Current Consumption
VDD_R_CURR_MAX
VDD_W_CURR_MAX
Code For Current Consumption @ V
DD
2:0
0=1mA; 1=5mA; 2=10mA; 3=25mA; 4=35mA; 5=45mA; 6=80mA;
7=200mA
C_SIZE_MULT—
This parameter is used for coding a factor MULT for computing the total
device size (see ‘C_SIZE’). The factor MULT is defined as 2C_SIZE_MULT+2.
Table 5-23 Multiply Factor For The Device Size
C_SIZE_MULT
MULT
Remark
0
2
2
= 4
1
2 3= 8
2
2
4
= 16
3
2
5
= 32
4
2
6
= 64
5
2
7
= 128
6
2
8
= 256
7
2
9
= 512
SECTOR_SIZE
—The size of an erasable sector. The contents of this register is a 5 bit
binary coded value, defining the number of write blocks (see WRITE_BL_LEN). The actual
size is computed by increasing this number by one. A value of zero means 1 write block,
31 means 32 blocks.
ERASE_GRP_SIZE
—The size of an erasable group. The contents of this register is a 5 bit
binary coded value, defining the number of sectors (see SECTOR_SIZE). The actual size
is computed by increasing this number by one. A value of zero means 1 sector, 31 means
32 sectors.
WP_GRP_SIZE
—The size of a write protected group. The contents of this register is a 5
bit binary coded value, defining the number of sectors (see SECTOR_SIZE). The actual
size is computed by increasing this number by one. A value of zero means 1 erase group,
31 means 32 erase groups.
WP_GRP_ENABLE
—A value of ‘0’ means no group write protection possible.
DEFAULT_ECC
—Set by the card manufacturer. It defines the ECC code which is
recommended for use. The field definition is the same as for the ECC field described later.
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