K4C89183AF
Mode Register Set Timing (CL=4, BL=4)
From Write operation to Mode Register Set operation
0
CLK
CLK
l
RC
=7cycles
Command
WRA
LAL
DESL
RDA
MRS
DESL
RDA
or
WRA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
LAL
A14~A0
UA
LA
Valid
(opcode)
UA
LA
BA0, BA1
BA
WL + BL/2
BA0="0"
BA1="0"
BA
Unidirectional DS/QS mode
DS
(input)
QS
(Output)
Low
DC
(input)
D0 D1 D2 D3
Unidirectional DS/Free Running QS mode
DS
(input)
QS
(Output)
DC
(input)
D0 D1 D2 D3
Note : Minimum delay from LAL following WRA to RDA of MRS operation is WL+BL/2.
- 45 -
REV. 0.7 Jan. 2005