W632GU6NB
Publication Release Date: Aug. 20, 2018
Revision: A01
- 131 -
Table 47
– I
DD7
Measurement-Loop Pattern
1
ATTENTION:
Sub-Loops 10-19 have inverse A[6:3] Pattern and Data Pattern than Sub-Loops 0-9
C
K
,
C
K
#
CKE
S
ub
-Lo
op
C
y
c
le
N
um
ber
C
om
m
a
nd
C
S
#
R
A
S
#
C
A
S
#
W
E
#
OD
T
B
A
[2
:0
]
A
[1
3
:1
1
]
A
[1
0
]
A
[9
:7
]
A[
6
:3
]
A
[2
:0
]
Data
2
to
g
g
lin
g
S
ta
tic
H
igh
0
0
ACT
0
0
1
1
0
0
0
0
0
0
0
-
1
RDA
0
1
0
1
0
0
0
1
0
0
0
00000000
2
D
1
0
0
0
0
0
0
0
0
0
0
-
...
Repeat above D Command until nRRD - 1
1
nRRD
ACT
0
0
1
1
0
1
0
0
0
F
0
-
nRRD+1
RDA
0
1
0
1
0
1
0
1
0
F
0
00110011
nRRD+2
D
1
0
0
0
0
1
0
0
0
F
0
-
...
Repeat above D Command until 2 * nRRD -1
2
2*nRRD
Repeat Sub-Loop 0, but
BA[2:0] = 2
3
3*nRRD
Repeat Sub-Loop 1, but
BA[2:0] = 3
4
4*nRRD
D
1
0
0
0
0
3
0
0
0
F
0
-
Assert and repeat above D Command until nFAW - 1, if necessary
5
nFAW
Repeat Sub-Loop 0, but
BA[2:0] = 4
6
nFAW+nRRD
Repeat Sub-Loop 1, but
BA[2:0] = 5
7
nFAW+2*nRRD
Repeat Sub-Loop 0, but
BA[2:0] = 6
8
nFAW+3*nRRD
Repeat Sub-Loop 1, but
BA[2:0] = 7
9
nFAW+4*nRRD
D
1
0
0
0
0
7
0
0
0
F
0
-
Assert and repeat above D Command until 2 * nFAW - 1, if necessary
10
2*nFAW+0
ACT
0
0
1
1
0
0
0
0
0
F
0
-
2*nFAW+1
RDA
0
1
0
1
0
0
0
1
0
F
0
00110011
2*nFAW+2
D
1
0
0
0
0
0
0
0
0
F
0
-
Repeat above D Command until 2 * nFAW + nRRD - 1
11
2*nFAW+nRRD
ACT
0
0
1
1
0
1
0
0
0
0
0
-
2*nFAW+nRRD+1
RDA
0
1
0
1
0
1
0
1
0
0
0
00000000
2*nFAW+nRRD+2
D
1
0
0
0
0
1
0
0
0
0
0
-
Repeat above D Command until 2 * nFAW + 2 * nRRD -1
12
2*nFAW+2*nRRD
Repeat Sub-Loop 10, but
BA[2:0] = 2
13
2*nFAW+3*nRRD
Repeat Sub-Loop 11, but
BA[2:0] = 3
14
2*nFAW+4*nRRD
D
1
0
0
0
0
3
0
0
0
0
0
-
Assert and repeat above D Command until 3 * nFAW - 1, if necessary
15
3*nFAW
Repeat Sub-Loop 10, but
BA[2:0] = 4
16
3*nFAW+nRRD
Repeat Sub-Loop 11, but
BA[2:0] = 5
17
3*nFAW+2*nRRD
Repeat Sub-Loop 10, but
BA[2:0] = 6
18
3*nFAW+3*nRRD
Repeat Sub-Loop 11, but
BA[2:0] = 7
19
3*nFAW+4*nRRD
D
1
0
0
0
0
7
0
0
0
0
0
-
Assert and repeat above D Command until 4 * nFAW - 1, if necessary
Notes:
1. DM must be driven LOW all the time. DQS, DQS# are used according to RD Commands, otherwise MID-LEVEL.
2. Burst Sequence driven on each DQ signal by Read Command. Outside burst operation, DQ signals are MID-LEVEL.