EM639165
FUNCTION TRUTH TABLE (continued)
Current State
/CS /RAS /CAS /WE Address
Command Action
H
L
L
L
L
L
X
H
H
H
L
X
H
H
L
X
H
L
X
X
DESEL
NOP
NOP (Idle after tRP)
PRE -
CHARGING
NOP (Idle after tRP)
ILLEGAL*2
TBST
BA
READ /
WRITE
X
H
L
BA, CA, A10
BA, RA
BA, A10
X
ILLEGAL*2
H
H
ACT
ILLEGAL*2
PRE /
PREA
L
NOP*4 (Idle after tRP)
L
L
L
L
L
L
H
L
REFA
MRS
ILLEGAL
ILLEGAL
Op-Code,
Mode-Add
ROW
H
L
X
H
X
H
X
H
X
X
DESEL
NOP
NOP (Row Active after tRCD)
NOP (Row Active after tRCD)
ACTIVATING
L
L
L
L
L
L
H
H
L
L
L
L
H
L
H
H
L
L
L
X
H
L
TBST
ILLEGAL*2
ILLEGAL*2
ILLEGAL*2
ILLEGAL*2
ILLEGAL
BA
READ /
WRITE
BA, CA, A10
BA, RA
BA, A10
X
ACT
PRE /
PREA
H
L
REFA
MRS
Op-Code,
ILLEGAL
Mode-Add
Preliminary
Rev 1.0 Feb. 2001
9