Harman Kardon AVR 3600 Service Manual page 163

AVR3600
FUNCTION TRUTH TABLE
Current State /CS /RAS /CAS /WE Address
IDLE H
L
L
L
L
L
L
L
ROW ACTIVE H
L
L
L
L
L
L
L
L
H
READ(Auto-
Precharge L
Disabled)
L
L
L
L
L
L
L
X X X X
H H H X
H H L BA
H L X BA, CA, A10
L H H BA, RA
L H L BA, A10
L L H X
Op-Code, Mode-
L L L
Add
X X X X
H H H X
H H L BA
H L H BA, CA, A10
H L L BA, CA, A10
L H H BA, RA
L H L BA, A10
L L H X
Op-Code, Mode-
L L L
Add
X X X X
H H H X
H H L BA
H L H BA, CA, A10
H L L BA, CA, A10
L H H BA, RA
L H L BA, A10
L L H X
Op-Code, Mode-
L L L
Add
256M Double Data Rate Synchronous DRAM
Command Action
DESEL NOP
NOP NOP
TERM ILLEGAL
READ / WRITE ILLEGAL
ACT Bank Active, Latch RA
PRE / PREA NOP
REFA Auto-Refresh
MRS Mode Register Set
DESEL NOP
NOP NOP
TERM ILLEGAL
Begin Read, Latch CA, Determine
READ / READA
Auto-Precharge
Begin Write, Latch CA, Determine
WRITE / WRITEA
Auto-Precharge
ACT Bank Active / ILLEGAL
PRE / PREA Precharge / Precharge All
REFA ILLEGAL
MRS ILLEGAL
DESEL NOP (Continue Burst to END)
NOP NOP (Continue Burst to END)
TERM Terminate Burst
Terminate Burst, Latch CA, Begin
READ / READA New Read, Determine Auto-
Precharge
WRITE / WRITEA ILLEGAL
ACT Bank Active / ILLEGAL
PRE / PREA Terminate Burst, Precharge
REFA ILLEGAL
MRS ILLEGAL
163
harman/kardon
A3S56D30ETP
A3S56D40ETP
Notes
2
2
4
5
5
2
3
2