W9812G6JH
11.17 Timing Chart of Read to Write Cycle
In the case of Burst Length = 4
(1) CAS Latency= 2
0
1
2
3
4
5
6
7
8
9
10
11
( a ) Command
DQM
Read
Write
DQ
( b ) Command
Read
D0
D1
Write
D2
D3
DQM
DQ
D0
D1
D2
D3
(2) CAS Latency= 3
( a ) Command
DQM
Read
Write
DQ
( b ) Command
Read
D0
D1
Write
D2
D3
DQM
DQ
D0
D1
D2
D3
Note: The Output data must be masked by DQM to avoid I/O conflict
11.18 Timing Chart of Write to Read Cycle
In the c as e of B urs t Length=4
0
1
2
3
4
5
6
7
8
9
10
11
(1) CAS Latency= 2
( a ) Command
DQM
Write Read
DQ
D0
Q0
Q1
Q2
Q3
( b ) Command
DQM
Write
Read
DQ
D0
D1
Q0
Q1
Q2
Q3
(2) CAS Latency= 3
( a ) Command
DQM
Write Read
DQ
D0
Q0
Q1
Q2
Q3
( b ) Command
DQM
Write
Read
DQ
D0
D1
Q0
Q1
Q2
Q3
Publication Release Date: Jun. 25, 2013
- 37 -
Revision A06
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