EM48AMM1684VTG
Burst Type ( A3 )
Burst Length
2
A2 A1 A0
Sequential Addressing
Interleave Addressing
X
X
X
X
0
0
0 1
1 0
0 1
1 0
X
X
X
X
0
0
1
1
0
1
0
1
0 1 2 3
1 2 3 0
2 3 0 1
3 0 1 2
0 1 2 3
1 0 3 2
2 3 0 1
3 2 1 0
4
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0 1 2 3 4 5 6 7
1 2 3 4 5 6 7 0
2 3 4 5 6 7 0 1
3 4 5 6 7 0 1 2
4 5 6 7 0 1 2 3
5 6 7 0 1 2 3 4
6 7 0 1 2 3 4 5
7 0 1 2 3 4 5 6
0 1 2 3 4 5 6 7
1 0 3 2 5 4 7 6
2 3 0 1 6 7 4 5
3 2 1 0 7 6 5 4
4 5 6 7 0 1 2 3
5 4 7 6 1 0 3 2
6 7 4 5 2 3 0 1
7 6 5 4 3 2 1 0
8
Full Page *
n
n
n
Cn Cn+1 Cn+2 …...
-
* Page length is a function of I/O organization and column addressing x16 (CA0 ~ CA8): Full page = 512bits
1. Command Truth Table
CKE
BA0,
BA1
A11,
Command
Symbol
/CS /RAS /CAS /WE
A10
A9~A0
n-1
n
Ignore Command
No operation
Burst stop
DESL
NOP
H
H
H
H
H
H
H
H
H
H
H
X
X
X
X
X
X
X
X
X
X
X
H
L
L
L
L
L
L
L
L
L
L
X
H
H
H
H
H
H
L
X
H
H
L
X
H
L
X
X
X
V
V
V
V
V
V
X
L
X
X
X
L
X
X
X
V
V
V
V
V
X
X
V
BSTH
READ
Read
H
H
L
Read with auto pre-charge READA
Write WRIT
Write with auto pre-charge WRITA
L
H
L
L
L
L
H
V
L
Bank activate
ACT
PRE
PALL
MRS
H
H
H
L
H
L
Pre-charge select bank
Pre-charge all banks
Mode register set
L
L
L
H
L
L
L
* H = High level, L = Low level, X = High or Low level (Don’t care), V = Valid data input
Jun. 2010
14/20
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EOREX [ EOREX CORPORATION ]
