1HY5DW283222BF(P)
OPERATION COMMAND TRUTH TABLE - I
Current
State
/CS
H
L
L
L
IDLE
L
L
L
L
L
H
L
L
L
ROW
ACTIVE
L
L
L
L
L
H
L
L
L
READ
L
L
L
L
L
H
L
WRITE
L
L
L
/RAS
X
H
H
H
H
L
L
L
L
X
H
H
H
H
L
L
L
L
X
H
H
H
H
L
L
L
L
X
H
H
H
H
/CAS
X
H
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
X
H
H
L
L
/WE
X
H
L
H
L
H
L
H
L
X
H
L
H
L
H
L
H
L
X
H
L
H
L
H
L
H
L
X
H
L
H
L
Address
X
X
X
BA, CA, AP
BA, CA, AP
BA, RA
BA, AP
X
OPCODE
X
X
X
BA, CA, AP
BA, CA, AP
BA, RA
BA, AP
X
OPCODE
X
X
X
BA, CA, AP
BA, CA, AP
BA, RA
BA, AP
X
OPCODE
X
X
X
BA, CA, AP
BA, CA, AP
Command
DSEL
NOP
BST
READ/READAP
WRITE/WRITEAP
ACT
PRE/PALL
AREF/SREF
MRS
DSEL
NOP
BST
READ/READAP
WRITE/WRITEAP
ACT
PRE/PALL
AREF/SREF
MRS
DSEL
NOP
BST
READ/READAP
WRITE/WRITEAP
ACT
PRE/PALL
AREF/SREF
MRS
DSEL
NOP
BST
READ/READAP
WRITE/WRITEAP
Action
NOP or power down
3
NOP or power down
3
ILLEGAL
4
ILLEGAL
4
ILLEGAL
4
Row Activation
NOP
Auto Refresh or Self Refresh
5
Mode Register Set
NOP
NOP
ILLEGAL
4
Begin read : optional AP
6
Begin write : optional AP
6
ILLEGAL
4
Precharge
7
ILLEGAL
11
ILLEGAL
11
Continue burst to end
Continue burst to end
Terminate burst
Term burst, new read:optional AP
8
ILLEGAL
ILLEGAL
4
Term burst, precharge
ILLEGAL
11
ILLEGAL
11
Continue burst to end
Continue burst to end
ILLEGAL
4
Term burst, new read:optional AP
8
Term burst, new write:optional AP
Rev. 1.1 / May. 2005
9
HYNIX [ HYNIX SEMICONDUCTOR ]
