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)： 76/79頁
文件大小： 233K
代理商： HB288016MM1
HB288016MM1
76
Abbreviations and Terms
Abbreviations
Terms
<n>
Argument of a command or data field.
CMD<n>
MultiMediaCard bus command <n>. See Command.
PP
Push Pull, output driver type with low impedance driver capability for 0 and 1.
OD
Open Drain, output driver type with low impedance driver capability for 0 and high
impedance driver capability for 1.
CSD
Card specific data, MultiMediaCard register to store operating parameters.
CID
Card identification data, MultiMediaCard register for the card initialization procedure.
RCA
Relative card address, MultiMediaCard register which contains the current card
address of an initialized MultiMediaCard.
OCR
Operation condition register, MultiMediaCard register that contains the voltage window
which is supported by the MultiMediaCard.
DSR
Driver stage register, control register for the programmable driver stage driver (PDS).
PDS
Programmable driver stage driver, is a tri-state output driver which has is
programmable to adapt the driver capabilities to the bus design.
Command
A command send from the MultiMediaCard host to one or more MultiMediaCard cards
Response
A response is always sent from the card to the host. It is always initiated by a
command (Remark: not all commands enforce responses).
Broadcast Com.
A command may send as broadcast or as an addressed command. A broadcast
command is sent to all cards connected to the MultiMediaCard bus simultaneous.
Addressed Com.
An addressed command is sent to exactly one selected MultiMediaCard. Normally an
addressed command forces a response of the card.
Point to point C.
Same as addressed command
DAT
The data (input)/output signal of the MultiMediaCard.
CLK
The clk input signal of the MultiMediaCard.
CMD
The command/response input/output of the MultiMediaCard.
V
SS1
,
2
V
CC
Memory core
Ground contacts/lines of the MultiMediaCard.
Supply voltage contact/line of the MultiMediaCard.
Array of memory cells in the core of the MultiMediaCard.
MultiMediaCard
interface
MultiMediaCard command interpreter module.
MID
Manufacturer Identifier.
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