MOSEL VITELIC
V54C3128804VAT
SDRAM FUNCTION TRUTH TABLE(continued)
CURRENT
1
STATE
CS
RAS
CAS
WE
BS
Addr ACTION
Write
with
Auto
Precharge
H
L
L
L
L
L
L
L
X
X
X
H
L
H
L
H
L
X
X
BS
BS
X
BS
BS
X
X
X
X
X
X
X
AP
X
NOP (Continue Burst to End;> Precharge)
H
H
H
H
L
H
H
L
NOP (Continue Burst to End;> Precharge)
2
ILLEGAL
2
ILLEGAL
L
ILLEGAL
2
H
H
L
ILLEGAL
2
L
L
ILLEGAL
X
ILLEGAL
Precharging
H
L
L
L
L
L
L
X
H
H
H
L
X
H
H
L
H
H
L
X
H
L
X
H
L
X
X
X
X
X
X
X
AP
X
NOP;> Idle after tRP
NOP;> Idle after tRP
2
BS
BS
BS
BS
X
ILLEGAL
2
ILLEGAL
2
ILLEGAL
4
L
L
NOP
X
ILLEGAL
Row
Activating
H
L
L
L
L
L
L
X
H
H
H
L
X
H
H
L
H
H
L
X
H
L
X
H
L
X
X
X
X
X
X
X
AP
X
NOP;> Row Active after tRCD
NOP;> Row Active after tRCD
2
BS
BS
BS
BS
X
ILLEGAL
2
ILLEGAL
2
ILLEGAL
2
L
L
ILLEGAL
X
ILLEGAL
Write
Recovering
H
L
L
L
L
L
L
X
H
H
H
L
X
H
H
L
H
H
L
X
H
L
X
H
L
X
X
X
X
X
X
X
AP
X
NOP
NOP
ILLEGAL
ILLEGAL
ILLEGAL
2
BS
BS
BS
BS
X
2
2
2
L
L
ILLEGAL
ILLEGAL
X
Refreshing
H
L
L
L
L
L
X
H
H
H
L
X
H
H
L
H
L
X
H
L
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
NOP;> Idle after tRC
NOP;> Idle after tRC
ILLEGAL
ILLEGAL
ILLEGAL
L
ILLEGAL
Mode
Register
H
L
L
L
L
X
H
H
H
L
X
H
H
L
X
H
L
X
X
X
X
X
X
X
X
X
X
X
X
NOP
NOP
ILLEGAL
ILLEGAL
ILLEGAL
Accessing
X
V54C3128804VAT Rev. 1.4 November 2000
40
MOSEL [ MOSEL VITELIC, CORP ]
