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): 49/79頁
文件大?。?/td> 516K
代理商: FLAS00XX
MultiMediaCard Flash
Preliminary MultiMediaCard Product Manual;
1998 SANDISK CORPORATION
Page 49 of 79
Table 5-9 I/O Mode Commands (Class 9)
Cmd
Index
Type
Argument
Resp
Abbreviation
Command Description
CMD39
ac
[31:16] RCA
[15:15]
write flag
register
[14:8]
address
[7:0] register data
register
R4
FAST_IO
Used to write and read 8 bit (register) data
fields. The command addresses a card and
a register and provides the data for writing
if the write flag is set. The R4 response
contains data read from the addressed
register.
This
command
application dependent registers which are
not
defined
in
the
standard.
accesses
MultiMediaCard
CMD40
bcr
[31:0] stuff bits
R5
GO_IRQ_STATE
Sets the system into interrupt mode.
CMD41
.
CMD59
..
reserved
CMD60
- 63
reserved for manufacturer
5.6 Card State Transition Table
Table 5-10 defines the MultiMediaCard state transitions in dependency of the received
command.
Table 5-10 Card State Transition Table
Current State
idle
ready
ident
stby
tran
data
rcv
prg
dis
ina
irq
Command
changes to
class independent
CRC error
-
-
-
-
-
-
-
-
-
-
stby
Command not supported
-
-
-
-
-
-
-
-
-
-
stby
class 0
CMD0
idle
idle
Idle
idle
idle
idle
idle
idle
idle
-
stby
CMD1, card VDD range compatible
ready
-
-
-
-
-
-
-
-
-
stby
CMD1, card is busy
idle
-
-
-
-
-
-
-
-
-
stby
CMD1,
compatible
card
VDD
range
not
ina
-
-
-
-
-
-
-
-
-
stby
CMD2, card wins bus
-
ident
-
-
-
-
-
-
-
-
stby
CMD2, card loses bus
-
ready
-
-
-
-
-
-
-
-
stby
CMD3
-
-
Stby
-
-
-
-
-
-
-
stby
CMD4
-
-
-
stby
-
-
-
-
-
-
stby
CMD7, card is addressed
-
-
-
tran
-
-
-
-
prg
-
stby
CMD7, card is not addressed
-
-
-
-
stby
stby
-
dis
-
-
stby
CMD9
-
-
-
stby
-
-
-
-
-
-
stby
CMD10
-
-
-
stby
-
-
-
-
-
-
stby
CMD12
-
-
-
-
-
tran
prg
-
-
-
stby
CMD13
-
-
-
stby
tran
data
rcv
prg
dis
-
stby
CMD15
-
-
-
ina
ina
ina
ina
ina
ina
-
stby
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