EDX5116ABSE
Figure 6
ACT-, RD-, WR-, PRE-to-WR Packet Interactions
T
0
CFM
CFM
CFMN
CFMN
RQ11..0
RQ11..0
ACT WR
a
b
ACT WR
a
b
T
1
T
2
T
3
T
4
T
5
T
6
T
7
T
8
T
9
T
10
T
11
T
12
T
13
T
14
T
15
T
16
T
17
T
18
T
19
T
20
T
21
T
22
T
23
DQ15..0
DQ15..0
No limit
DQN15..0
DQN15..0
AWd Case (activate-write different bank)
a: ROWA Packet with ACT,Ba,Ra
/
Ba
=
Bb
b: COL Packet with WR,Bb,Cb
t
RCD-W
AWs Case (activate-write same bank)
a: ROWA Packet with ACT,Ba,Ra
b: COL Packet with WR,Bb,Cb
Ba = Bb
T
0
CFM
CFM
CFMN
CFMN
RQ11..0
RQ11..0
DQ15..D0
DQ15..0
DQN15..0
DQN15..0
RD
a
T
1
T
2
T
3
T
4
T
5
T
6
T
7
T
8
T
9
T
10
T
11
T
12
T
13
T
14
T
15
T
16
T
17
T
18
T
19
T
20
T
21
T
22
T
23
t
鈭哛W
WR
b
t
CWD
Q(a)
D(b)
RD
a
t
鈭哛W
WR
b
t
CWD
Q(a)
D(b)
t
CAC
t
CAC
RWs Case (read-write-same bank)
a: COL Packet with RD,Ba,Ca
b: COL Packet with WR,Bb,Cb
RWd Case (read-write-different bank)
a: COL Packet with RD,Ba,Ca
b: COL Packet with WR,Bb,Cb
t
CC
t
CYCLE
/
Ba
=
Bb
t
CC
t
CYCLE
Ba = Bb
T
0
CFM
CFM
CFMN
CFMN
RQ11..0
RQ11..0
DQ15..0
DQ15..0
DQN15..0
DQN15..0
WR
a
T
1
T
2
T
3
T
4
T
5
T
6
T
7
T
8
T
9
T
10
T
11
T
12
T
13
T
14
T
15
T
16
T
17
T
18
T
19
T
20
T
21
T
22
T
23
t
CC
WR
b
WR
a
t
CC
WR
b
WWd Case (write-write different bank)
a: COL Packet with WR,Ba,Ca
b: COL Packet with WR,Bb,Cb
/
Ba
=
Bb
WWs Case (write-write same bank)
a: COP Packet with WR,Ba,Ca
b: COL Packet with WR,Bb,Cb
Ba = Bb
T
0
CFM
CFM
CFMN
CFMN
RQ11..0
RQ11..0
T
1
T
2
T
3
T
4
T
5
T
6
T
7
T
8
T
9
T
10
T
11
T
12
T
13
T
14
T
15
T
16
T
17
T
18
T
19
T
20
T
21
T
22
T
23
t
RCD-W
PRE WR
a
b
PRE
a
t
RP
t
RP
+t
RCD-W
ACT
WR
B
b
DQ15..0
DQ15..0
No limit
DQN15..0
DQN15..0
PWd Case (precharge-write different bank)
a: ROWP Packet with PRR,Ba
/
Ba
=
Bb
b: COL Packet with WR,Bb,Cb
PWs Case (precharge-write same bank)
a: ROWP Packet with PRE,Ba
Ba = Bb
b: COP Packet with WR,Bb,Cb
Preliminary Data Sheet E0643E30 (Ver. 3.0)
18