Card State Transition Table - SanDisk SDSDB-32-201-80 - Industrial Grade Flash Memory Card Product Manual

Secure Digital (SD) Card Protocol Description

4.9. Card State Transition Table

Table 4-11 defines the SD Card state transitions in dependency of the received command.
Command
Class Independent
CRC error
command not sup ported
Class 0
CMD0
CMD2
CMD3
CMD4
CMD7, card is addressed
CMD7, card is not addressed
CMD9
CMD10
CMD12
CMD13
CMD15
Class 2
CMD16
CMD17
CMD18
Class 4
CMD16
CMD24
CMD25
CMD27
Class 6
CMD28
CMD29
CMD30
Class 5
4-24
Table 4-11. Card State Transition Table
idle ready ident
- - -
- - -
idle idle idle
- ident -
- - stby
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
SanDisk Secure Digital (SD) Card Product Manual, Rev. 1.9 © 2003 SANDISK CORPORATION
Current State
stby tran data rcv
Changes to
- - - -
- - - -
idle idle idle idle
- - - -
stby - - -
stby - - -
tran - - -
stby stby stby -
stby - - -
stby - - -
- - tran prg
stby tran data rcv
ina ina ina ina
- tran - -
- data - -
- data - -
See Class 2
- rcv - -
- rcv - -
- rcv - -
- prg - -
- prg - -
- data - -
prg dis ina
- - -
- - -
idle idle -
- - -
- - -
- - -
- prg -
dis - -
- - -
- - -
- - -
prg dis -
ina ina -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -