
MultiMediaCard Flash
Preliminary MultiMediaCard Product Manual;
1998 SANDISK CORPORATION
Page 32 of 79
Table 4-6 Status Register
Bits
Type
Value
Description
Clear
Cond.
31
E R
‘0’= no error
‘1’= error
The commands argument was out of allowed range for this card.
C
30
E R
X ‘0’= no error
‘1’= error
A misaligned address, which did not match the block length was used
in the command.
C
29
E R
‘0’= no error
‘1’= error
The transferred block length is not allowed for this card or the number
of bytes transferred does not match the block length
C
28
E R
‘0’= no error
‘1’= error
An error in the sequence of erase commands occurred.
C
27
E X
‘0’= no error
‘1’= error
An invalid selection, sectors or groups, for erase.
C
26
E R X
‘0’= not
protected
‘1’= protected
The command tried to write a write protected block.
C
25-24
Reserved
23
E R
‘0’= no error
‘1’= error
The CRC check of the previous command failed.
B
22
E R
‘0’= no error
‘1’= error
Command not legal for the current state
B
21
E X
‘0’=
‘1’= failure
success
Card internal ECC was applied but the correction of data is failed.
C
20
E R X
‘0’= no error
‘1’= error
Internal card controller error
C
19
E R X
‘0’= no error
‘1’= error
A general or an unknown error occurred during the operation.
C
18
E X
‘0’= no error
‘1’= error
The card could not sustain data transfer in stream read mode
C
17
E X
‘0’= no error
‘1’= error
The card could not sustain data programming in stream write mode
C
16
E R
‘0’= no error
‘1’= error
Can be one of the following errors:
-The CID register has been already written and cannot be overwritten
-The read only section of the CSD does not match the card content.
-An attempt to reverse the copy (set as original) or permanent WP
(unprotected) bits was made.
C
15
S X
‘0’=not
protected
protected
‘1’=
Only partial address space was erased due to existing WP blocks.
C
14
S X
‘0’=
‘1’= disabled
enabled
The command is done without using the internal ECC.
A
13
S R
‘0’= cleared ‘1’=
set
An erase sequence was cleared before executing because an out of
erase sequence command was received
C
12-9
S X
0=idle
1=ready
2=ident
3=stby
4=tran
5=data
6=rcv
7=prg
8=dis
Current state of the card.
B