A43L2616B
Basic feature And Function Descriptions
1. CLOCK Suspend
1) Click Suspended During Write (BL=4)
2) Clock Suspended During Read (BL=4)
CLK
CMD
CKE
Masked by CKE
Internal
CLK
Masked by CKE
WR
RD
DQ(CL2)
DQ(CL3)
D0
D0
D1
D1
D2
D2
Not Written
D3
D3
Q0
Q1
Q0
Q2
Q1
Q3
Q2
Suspended Dout
Q3
Note: CLK to CLK disable/enable=1 clock
2. DQM Operation
1) Write Mask (BL=4)
2) Read Mask (BL=4)
CLK
CMD
WR
RD
DQM
Masked by CKE
DQ(CL2)
DQ(CL3)
D0
D0
D1
D1
D3
D3
Q0
Hi-Z
Hi-Z
Masked by CKE
Q2
Q1
Q3
Q2
Q3
DQM to Data-in Mask = 0CLK
DQM to Data-out Mask = 2
2) Read Mask (BL=4)
CLK
CMD
CKE
RD
DQM
DQ(CL2)
DQ(CL3)
Q0
Hi-Z
Hi-Z
Q2
Q1
Hi-Z
Hi-Z
Q4
Q3
Hi-Z
Hi-Z
Q6
Q5
Q7
Q6
Q8
Q7
* Note :
1. DQM makes data out Hi-Z after 2 clocks which should masked by CKE “L”.
2. DQM masks both data-in and data-out.
(December, 2009, Version 1.3)
14
AMIC Technology, Corp.
AMICC [ AMIC TECHNOLOGY ]
