Responses - SanDisk SDSDB-32-201-80 - Industrial Grade Flash Memory Card Product Manual

CMD32
CMD33
CMD38
Class 7
CMD42
Class 8
CMD55
CMD56; RD/WR = 0
CMD56; RD/WR = 1
ACMD6
ACMD13
ACMD22
ACMD23
ACMD18,25,26,38,
43,44,45,46,47,48,49
ACMD41, card V range
DD
compatible
ACMD41, card is busy
ACMD41, card V range not
DD
compatible
ACMD42
ACMD51
class 9- 11
CMD41; CMD43...CMD54,
CMD57-CMD59
CMD60...CMD63

4.10. Responses

All responses are sent via the CMD line. The response transmission always starts with the MSB. The response
length depends on the response type.
A response always starts with a start bit (always '0'), followed by the bit indicating the direction of transmission
(card = '0'). A value denoted by 'x' in the tables below indicates a variable entry. All responses except for the type
R3 (see below) are protected by a CRC. Every response is terminated by the end bit (always '1').
There are four types of responses that are supported in the SanDisk SD Card. Their formats are defined as follows:
R1 (standard response): response length 48 bit.
SanDisk Secure Digital (SD) Card Product Manual, Rev. 1.9 © 2003 SANDISK CORPORATION
idle ready ident
- - -
- - -
- - -
This is an SDA optional command supported by the SanDisk SD Card.
idle - -
- - -
- - -
- - -
- - -
- - -
- - -
Refer to SD Card Security Specification for an explanation of the SD Security Features. The
SanDisk SD Card supports all the security related commands as explained in the specification.
ready - -
idle - -
ina - -
- - -
- - -
Secure Digital (SD) Card Protocol Description
Current State
stby tran data rcv
- tran - -
- tran - -
- prg - -
stby tran data rcv
- rcv - -
- data - -
- tran - -
- tran - -
- tran - -
- tran - -
- - - -
- - - -
- - - -
- tran - -
- data - -
Reserved
Reserved for manufacturer
prg dis ina
- - -
- - -
- - -
prg dis -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
4-25