Harman Kardon DVD 27 Service Manual page 64

DVD27
ESMT
FUNCTION TRUTH TABLE (TABLE2)
Current CKE
State ( n-1 )
H
L
Self L
Refresh L
L
L
L
H
All L
Banks L
Precharge L
Power L
Down L
L
H
H
H
H
All H
Banks H
Idle H
H
H
L
Any State H
other than H
Listed L
above L
Abbreviations : ABI = All Banks Idle, RA = Row Address
*Note : 6.CKE low to high transition is asynchronous.
7.CKE low to high transition is asynchronous if restart internal clock.
A minimum setup time 1CLK + t
8.Power down and self refresh can be entered only from the all banks idle state.
9.Must be a legal command.
Elite Semiconductor Memory Technology Inc.
CKE
CS RAS CAS WE
n
X X X X
H H X X
H L H H
H L H H
H L H L
H L L X
L X X X
X X X X
H H X X
H L H H
H L H H
H L H L
H L L X
L X X X
H X X X
L H X X
L L H H
L L H H
L L H L
L L L H
L L L H
L L L L
L L L L
L X X X
H X X X
L X X X
H X X X
L X X X
must be satisfy before any command other than exit.
SS
ADDR
X X INVALID
X X Exit Self Refresh
H X Exit Self Refresh
L X ILLEGAL
X X ILLEGAL
X X ILLEGAL
X X NOP (Maintain Self Refresh)
X X INVALID
X X Exit Self Refresh
H X Exit Self Refresh
L X ILLEGAL
X X ILLEGAL
X X ILLEGAL
X X NOP (Maintain Low Power Mode)
X X Refer to Table1
X X Enter Power Down
H X Enter Power Down
L X ILLEGAL
X X ILLEGAL
H RA Row (& Bank) Active
H X NOP
L X Enter Self Refresh
L OP Code Mode Register Access
X X NOP
X X Refer to Operations in Table 1
X X Begin Clock Suspend next cycle
X X Exit Clock Suspend next cycle
X X Maintain Clock Suspend
64
harman/kardon
M12L64164A
ACTION
Idle after tRFC (ABI)
Idle after tRFC (ABI)
ABI
ABI
Publication Date: Mar. 2003
Revision: 1.7
Note
6
6
7
7
8
8
8
9
9
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