RM0390 Rev 4 1001/1328
RM0390 Secure digital input/output interface (SDIO)
1031
13 ERASE_RESET
’0’= cleared
’1’= set
An erase sequence was cleared before
executing because an out of erase
sequence command was received
(commands other than CMD35, CMD36,
CMD38 or CMD13)
C
12:9 CURRENT_STATE S R
0 = Idle
1 = Ready
2 = Ident
3 = Stby
4 = Tran
5 = Data
6 = Rcv
7 = Prg
8 = Dis
9 = Btst
10-15 = reserved
The state of the card when receiving the
command. If the command execution
causes a state change, it will be visible to
the host in the response on the next
command. The four bits are interpreted as
a binary number between 0 and 15.
B
8 READY_FOR_DATA S R
’0’= not ready
‘1’ = ready
Corresponds to buffer empty signalling on
the bus
-
7 SWITCH_ERROR E X
’0’= no error
’1’= switch error
If set, the card did not switch to the
expected mode as requested by the
SWITCH command
B
6 Reserved
5 APP_CMD S R
‘0’ = Disabled
‘1’ = Enabled
The card will expect ACMD, or an
indication that the command has been
interpreted as ACMD
C
4 Reserved for SD I/O Card
3 AKE_SEQ_ERROR E R
’0’= no error
’1’= error
Error in the sequence of the
authentication process
C
2 Reserved for application specific commands
1
Reserved for manufacturer test mode
0
Table 189. Card status (continued)
Bits Identifier Type Value Description
Clear
condition
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