hb28d064mm2 Renesas Electronics Corporation., hb28d064mm2 Datasheet - Page 70

• Manufacturer Part Number: hb28d064mm2
• Description: Multimediacard 16 Mbyte/32 Mbyte/64 Mbyte/128 Mbyte
• Manufacturer: Renesas Electronics Corporation.

HB28E016/D032/D064/B128MM2
SPI Bus Timing
All timing diagrams use the following schematics and abbreviations:
H: Signal is high (logical ‘1’)
L: Signal is low (logical ‘0’)
X: Don’t care
Z: High impedance state (-> = 1)
*: Repeater
Busy: Busy Token
Command: Command token
Response: Response token
Data block: Data token
All timing values are defined in Table “Timing Values”. The host must keep the clock running for at least
N
response tokens.
Command/Response
70
Dataout
Dataout
Datain
Datain
CR
Host Command to Card Response - Card is ready
Host Command to Card Response - Card is busy
CS
CS
clock cycles after receiving the card response. This restriction applies to both command and data
H L L L
X H H H H
Z Z H H H H
H H L L L
X X H H H H
Z Z Z H H H
N
CS
N
CS
6 bytes command
H
* * * * * * *
6 bytes command
* * * * * * * * * * * * * * * * * *
* * * * * * *
H H H H H
H H H H
* * * * * * * * * * * * * * * * * *
N
CR
H
H H H H H
H
H H H
N
card response
CR
H H H H
1 or 2 bytes response
H H H H
L
busy
L L
N
* * * * * * *
EC
L
H H H
X X X
L Z Z Z
N
DS
H
L
H H
busy
L L
H H
H H
L L
N
EC
H H
H
L L
L L H H H
H H
H H
N
H H
EC
H
L
X X X
H Z Z
H H
X X
H Z