Harman Kardon AVR354 Service Manual page 60

AVR354
FUNCTION TRUTH TABLE (continued)
Current State /CS /RAS /CAS /WE Address
H
WRITE(Auto-
Precharge L
Disabled)
L
L
L
L
L
L
L
H
READ with
L
Auto-Precharge
L
L
L
L
L
L
L
H
WRITE with
L
Auto-Precharge
L
L
L
L
L
L
L
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
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 (Continue Burst to END)
NOP NOP (Continue Burst to END)
TERM ILLEGAL
Terminate Burst, Latch CA, Begin
READ / READA
Read, Determine Auto-Precharge
Terminate Burst, Latch CA, Begin
WRITE / WRITEA
Write, Determine Auto-Precharge
ACT Bank Active / ILLEGAL
PRE / PREA Terminate Burst, Precharge
REFA ILLEGAL
MRS ILLEGAL
DESEL NOP (Continue Burst to END)
NOP NOP (Continue Burst to END)
TERM ILLEGAL
READ / READA Support Concurrent Auto-Precharge
WRITE / WRITEA Support Concurrent Auto-Precharge
ACT Bank Active / ILLEGAL
PRE / PREA Precharge / ILLEGAL
REFA ILLEGAL
MRS ILLEGAL
DESEL NOP (Continue Burst to END)
NOP NOP (Continue Burst to END)
TERM ILLEGAL
READ / READA Support Concurrent Auto-Precharge
WRITE / WRITEA Support Concurrent Auto-Precharge
ACT Bank Active / ILLEGAL
PRE / PREA Precharge / ILLEGAL
REFA ILLEGAL
MRS ILLEGAL
120
harman/kardon
A3S56D30ETP
A3S56D40ETP
Notes
3
3
2
2
2
2
2