參數(shù)資料
型號(hào): HB288016MM1
廠商: Hitachi,Ltd.
英文描述: MultiMediaCard 16 MByte
中文描述: 多媒體16字節(jié)
文件頁數(shù): 24/79頁
文件大小: 233K
代理商: HB288016MM1
HB288016MM1
24
The command transmission always starts with the MSB. Each command starts with a start bit and ends with
a CRC command protection field followed by an end bit. The length of each command frame is fixed to 48
bits (2.4
μ
s at 20 MHz):
0
start bit
Note: 1. (Cyclic Redundancy Check)
1
host
1
end bit
bit5...bit0
command
bit31...bit0
argument
bit6...bit0
CRC*
1
The start bit is always ‘0’ in command frames (sent from host to MultiMediaCard). The host bit is always
‘1’ for commands. The command field contains the binary coded command number. The argument
depends on the command (refer to Table “Basic Commands (class 0) and Table “Block-Oriented Read
Commands (class 2)”). The CRC field is defined in Chapter “Cyclic Redundancy Check (CRC)”. The
HB288016MM1 supports the following MultiMediaCard commands:
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