AS4C64M16D3 Datasheet, PDF (63/89 Pages) Alliance Semiconductor Corporation – AS4C64M16D3

AS4C64M16D3
Timing Waveforms
Figure 25. MPR Readout of predefined pattern,BL8 fixed burst order, single readout
T0
Ta
Tb0
Tb1
Tc0
Tc1
Tc2
Tc3
Tc4
Tc5
Tc6
Tc7
Tc8
Tc9
Td
CK#
CK
tMPRR
tMOD
COMMAND
PREA
MRS
READ
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
MRS
MRS
MRS
VALID
tRP
tMOD
Notes 1
BA
3
VALID
3
A[1:0]
A[2]
A[9:3]
0
0
Notes 2
1
0
Notes 2
00
VALID
VALID
0
00
A10, AP
1
0
VALID
0
A[11]
0
VALID
0
A12, BC#
0
VALID
A[15:13]
0
VALID
RL
DQS, DQS#
DQ
NOTES:
1. RD with BL8 either by MRS or OTF.
2. Memory Controller must drive 0 on A[2:0].
0
0
TIME BREAK
Don't Care
Figure 26. MPR Readout of predefined pattern,BL8 fixed burst order, back to back radout
T0
Ta
Tb
Tc0
Tc1
Tc2
Tc3
Tc4
Tc5
Tc6
Tc7
Tc8
Tc9
Tc10
Td
CK#
CK
tMPRR
tMOD
COMMAND
PREA
tRP
MRS
tMOD
READ
READ
t ^{Notes 1}
Notes 1
CCD
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
MRS
VALID
BA
3
VALID
VALID
3
A[1:0]
A[2]
A[9:3]
0
0
0
Notes 2
Notes 2
1
0
0
Notes 2
Notes 2
00
VALID
VALID
VALID
0
00
A10, AP
1
0
VALID
VALID
0
A[11]
0
VALID
VALID
0
A12, BC#
0
VALID
VALID
Notes 1
Notes 1
A[15:13]
0
VALID
VALID
RL
DQS, DQS#
RL
DQ
NOTES:
1. RD with BL8 either by MRS or OTF.
2. Memory Controller must drive 0 on A[2:0].
0
0
TIME BREAK
Don't Care
Confidential
63
Rev. 3.0
Aug. /2014