參數(shù)資料
型號： HB288032MM1
元件分類： PROM
英文描述： FLASH 2.7V PROM CARD, XMA7
封裝： CARD-7
文件頁數(shù)： 5/80頁
文件大?。?/td> 236K
代理商： HB288032MM1
HB288032MM1
13
TRAN_SPEED
The following table defines the maximum data transfer rate TRAN_SPEED:
Maximum Data Transfer Rate Definition
TRAN_SPEED bit
Description
2:0
transfer rate exponent 0 = 100 kbit/s, 1 = 1 Mbit/s, 2 = 10 Mbit/s, 3 = 100
Mbit/s, 4...7 = reserved
6:3
time mantissa 0x0 = reserved, 0x1 = 1.0, 0x2 = 1.2, 0x3 = 1.3, 0x4 = 1.5,
0x5 = 2.0, 0x6 = 2.5, 0x7 = 3.0, 0x8 = 3.5, 0x9 = 4.0, 0xA = 4.5, 0xB = 5.0,
0xC = 5.5, 0xD = 6.0, 0xE = 7.0, 0xF = 8.0
7
reserved = ’0’
The HB288032MM1 supports a transfer rate between 0 and 20 Mbit/s. The parameter TRAN_SPEED is
0x2A.
CCC
The MultiMediaCard command set is divided into subsets (command classes). The card command class
register CCC defines which command classes are supported by this card. A set CCC bit means that the
corresponding command class is supported. For command class definition refer to Table “HB288032MM1
Command Classes”.
Supported Card Command Classes
CCC bit
Supported card command classes
0
class0
1
class1
......
11
class11
The HB288032MM1 supports the command classes 0, 1, 2, 3, 4, 5, 6 and 7. The parameter CCC is
permanently assigned to the value 0x0FF.
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