參數(shù)資料
型號(hào)： romr0002
廠商： SIEMENS AG
英文描述： MultiMediaCard R0002 2 Mbyte ROM(多媒體卡 R0002 2 Mbyte ROM)
中文描述： 多媒體R0002 2字節(jié)的光盤(pán)（多媒體卡R0002 2字節(jié)光盤(pán)）
文件頁(yè)數(shù)： 14/41頁(yè)
文件大?。?/td> 207K
代理商： ROMR0002
Siemens
Product Manual R0002
Semiconductor Group
14
3.1
from the entries C_SIZE, C_SIZE_MULT and READ_BLK_LEN as follows:
The memory size of the R0002 is 2 MByte. The parameter C_SIZE is 1, the parameter
C_SIZE_MULT is 7 and the parameter READ_BLK_LEN is 0xB (see above).
VDD_R_CURR_MIN
The maximum supply current at the minimal supply voltage V
DD
(2.0 V):
The parameter
VDD_R_CURR_MIN
is permanently assigned to the value 3 (10 mA).
For more details see "Chapter 9.3: Power consumption".
VDD_R_CURR_MAX
The maximum supply current at the maximum supply voltage V
DD
(3.6V):
The parameter
VDD_R_CURR_MAX
is permanently assigned to the value 3 (25 mA).
For more details see "Chapter 9.3: Power consumption".
PERM_WRITE_PROTECT
Permanently protects the whole card content against overwriting or erasing (all write and erase
commands for this card are permanently disabled). This parameter has permanently the value ‘1’.
TMP_WRITE_PROTECT
Temporarily protects the whole card content from being overwritten or erased (all write and erase
commands for this card are permanently disabled). This parameter has always the value ‘1’.
ECC
Defines the ECC code that was used for storing data on the card. This field is used by the host (or
application) to decode the user data.The following table defines the field format.
VDD_R_CURR_MIN[2:0]
0=0.5 mA; 1=1 mA; 2=5 mA; 3=10 mA; 4=25 mA;
5=35 mA; 6=60 mA; 7=100 mA
Table 12: Supply current consumption @ V
DD
=2.0V
VDD_R_CURR_MAX[2:0]
0=1 mA; 1=5 mA; 2=10 mA; 3=25 mA; 4=35 mA;
5=45 mA; 6=80 mA; 7=200 mA
Table 13: Supply current consumption @ V
DD
=3.6V
ECC
ECC type
Maximum number of correctable bits
0
none (default)
none
Table 14: ECC type
BLOCKLEN
2
READBLKLEN
2048
=
=
READBLKLEN
12
<
(
)
MULT
2
CSIZEMULT
2
+
512
=
=
CSIZEMULT
8
<
(
)
BLOCKNR
CSIZE
1
+
(
)
MULT
1024
=
=
SIZE
BLOCKNR BLOCKLEN
2097152
2
MByte
=
=
=
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