MR57T00801G Datasheet, PDF (4/24 Pages) OKI electronic componets – P2ROM MultiMediaCard

OKI Semiconductor
FEDR57T00801G-02-03
MR57T00801G / P2ROM MMC
4. COMMAND
4.1 Command Format (MMC Mode/SPI Mode)
Bit position
Bit width
Value
Description
47
46
[45:40]
1
1
6
“0”
“1”
x
Start bit Transmission bit Command index
[39:08]
32
x
Argument
[07:01]
7
x
CRC7
00
1
“1”
End bit
4.2 Command Class (MMC Mode)
0 1 2 3 4 7 9 10 11 12 13 15 16 17 18 20 23
Class 0 Basic + + + + + + + +
+++
Class 1
Class 2
Stream
read
Block
read
+
+++
+
4.3 Command Class (SPI Mode)
Class 0
Class 1
Class 2
Basic
Non support
Block read
0 1 9 10 12 13 16 17 18 23 58 59
++++
+
++
+
++++
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