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W9825G6JH
8. OPERATION MODE
Fully synchronous operations are performed to latch the commands at the positive edges of CLK.
Table 1 shows the truth table for the operation commands.
Table 1 Truth Table (Note (1) , (2))
COMMAND
DEICE
STATE
CKEn-1 CKEn
DQM
BS0, 1
A10
A0 ? A9
A11, A12
CS
RAS
CAS
WE
Bank Active
Bank Precharge
Precharge All
Idle
Any
Any
H
H
H
x
x
x
x
x
x
v
v
x
v
L
H
v
x
x
L
L
L
L
L
L
H
H
H
H
L
L
Write
Write with Auto-
precharge
Active
Active
(3)
(3)
H
H
x
x
x
x
v
v
L
H
v
v
L
L
H
H
L
L
L
L
Read
Active (3)
H
x
x
v
L
v
L
H
L
H
Read with Auto-
precharge
Active
(3)
H
x
x
v
H
v
L
H
L
H
Mode Register Set
No-operation
Burst Stop
Device Deselect
Auto-refresh
Self-refresh Entry
Self-refresh Exit
Clock Suspend Mode
Entry
Power Down Mode
Entry
Clock Suspend Mode
Exit
Power Down Mode
Exit
Data Write/Output
Enable
Data Write/Output
Disable
Idle
Any
Active (4)
Any
Idle
Idle
Idle
(S.R.)
Active
Idle
Active (5)
Active
Any
(Power Down)
Active
Active
H
H
H
H
H
H
L
L
H
H
H
L
L
L
H
H
x
x
x
x
H
L
H
H
L
L
L
H
H
H
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
L
H
v
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
v
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
v
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
L
L
L
H
L
L
H
L
x
H
L
x
H
L
x
x
L
H
H
x
L
L
x
H
x
x
H
x
x
H
x
x
L
H
H
x
L
L
x
H
x
x
H
x
x
H
x
x
L
H
L
x
H
H
x
x
x
x
x
x
x
x
x
x
Notes:
(1) v = valid
x = Don't care
L = Low Level
H = High Level
(2) CKEn signal is input level when commands are provided.
CKEn-1 signal is the input level one clock cycle before the command is issued.
(3) These are state of bank designated by BS0, BS1 signals.
(4) Device state is full page burst operation.
(5) Power Down Mode can not be entered in the burst cycle.
When this command asserts in the burst cycle, device state is clock suspend mode.
Publication Release Date: Mar. 13, 2014
- 13 -
Revision: A09
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