• Card Response to Host Command
HB28E016/D032/D064/B128MM2
CS L L L L L
******************
Datain H H H H H H
*********
Dataout H H H H H 1 or 2 bytes response
HHHH
NRC
HHHH
• Single Block Read
6 Bytes command
*************
L L HHH
H HH HXX X
HH HH H Z Z
CS
Datain
HL L L
NCS
XH H HH
Read command
******************
HHHHH
**********
Dataout Z Z H H H H * * * * * * *
NCR
NAC
H H H H Card response H H H H
• Multiple Block Read – Stop Transmission is sent between blocks
L L L LHHH
NEC
HH HX X X
Data block H H Z Z
CS
Datain
Dataout
HL L
******************
L LL L L
NCS
X H * * H Read Cmd H H H H
**********
H H Stop Cmd H H H H H H H
NCR
NAC
NAC
NCR
Z Z H H H * * * * H * * H Card Resp H * * H Data block H * * H Data block H H * * H Card Resp
• Multiple Block Read – Stop Transmission is sent within a block
CS
Datain
Dataout
HL L
******************
L LL L L
NCS
X H * * H Read Cmd H H H H
**********
H H H Stop Cmd H H H H H H H H H H
NCR
NAC
NAC
NCR
Z Z H H H * * * * H * * H Card Resp H * * H Data block H * * H Data X X H * * H Card Resp
• Reading The CSD Register
CS H L L L
******************
L L L H H HH
NCS
NEC
Datain X H H H H read command H H H H H
*******
H HH X X XX
NCR
NCX
Dataout Z Z H H H H * * * * * * * H H H H card response H H H H data block H H H H Z Z Z
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