A43E26161 AMIC Technology Corporation, A43E26161 Datasheet - Page 17

• Manufacturer Part Number: A43E26161
• Description: 1m X 16 Bit X 4 Banks Low Power Synchronous Dram
• Manufacturer: AMIC Technology Corporation

4. CAS Interrupt (II) : Read Interrupted Write & DQM
(July, 2008, Version 1.7)
* Note : 1. To prevent bus contention, there should be at least one gap between data in and data out.
(1) CL=2, BL=4
(2) CL=3, BL=4
i) CMD
ii) CMD
iii) CMD
iv) CMD
ii) CMD
iii) CMD
iv) CMD
v) CMD
i) CMD
2. To prevent bus contention, DQM should be issued which makes a least one gap between data in and data out.
DQM
DQM
DQM
DQM
DQM
DQM
DQM
DQM
DQM
CLK
CLK
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
RD
RD
RD
RD
RD
RD
RD
RD
RD
WR
Hi-Z
WR
D0
D0
WR
WR
Hi-Z
D1
D0
D1
D0
Q0
Note 1
WR
WR
Hi-Z
Q0
D2
D1
D0
D2
D1
D0
WR
Hi-Z
Note 2
Hi-Z
WR
WR
D3
D2
D1
D0
D3
D2
D1
D0
16
WR
D3
D2
D1
D3
D2
D1
D0
D3
D2
D3
D2
D1
D3
D3
D2
D3
AMIC Technology, Corp.
A43E26161