Datasheet

AS4C16M16SA-C&I
Confidential 14 Rev. 3.0 Mar. /2015

Burst Definition, Addressing Sequence of Sequential and Interleave Mode
Table 8. Burst Definition
Burst Length
Start Address
Sequential
Interleave
A2
A1
A0
2
X
X
0
0, 1
0, 1
X
X
1
1, 0
1, 0
4
X
0
0
0, 1, 2, 3
0, 1, 2, 3
X
0
1
1, 2, 3, 0
1, 0, 3, 2
X
1
0
2, 3, 0, 1
2, 3, 0, 1
X
1
1
3, 0, 1, 2
3, 2, 1, 0
8
0
0
0
0, 1, 2, 3, 4, 5, 6, 7
0, 1, 2, 3, 4, 5, 6, 7
0
0
1
1, 2, 3, 4, 5, 6, 7, 0
1, 0, 3, 2, 5, 4, 7, 6
0
1
0
2, 3, 4, 5, 6, 7, 0, 1
2, 3, 0, 1, 6, 7, 4, 5
0
1
1
3, 4, 5, 6, 7, 0, 1, 2
3, 2, 1, 0, 7, 6, 5, 4
1
0
0
4, 5, 6, 7, 0, 1, 2, 3
4, 5, 6, 7, 0, 1, 2, 3
1
0
1
5, 6, 7, 0, 1, 2, 3, 4
5, 4, 7, 6, 1, 0, 3, 2
1
1
0
6, 7, 0, 1, 2, 3, 4, 5
6, 7, 4, 5, 2, 3, 0, 1
1
1
1
7, 0, 1, 2, 3, 4, 5, 6
7, 6, 5, 4, 3, 2, 1, 0
Full page
location = 0-511
n, n+1, n+2, n+3, …511, 0,
1, 2, … n-1, n, …
Not Support

CAS Latency Field (A6~A4)
This field specifies the number of clock cycles from the assertion of the Read command to the first read data.
The minimum whole value of CAS Latency depends on the frequency of CLK. The minimum whole value
satisfying the following formula must be programmed into this field.
t
CAC
(min)  CAS Latency X t
CK
Table 9. CAS Latency
A6
A5
A4
CAS Latency
0
0
0
Reserved
0
0
1
Reserved
0
1
0
2 clocks
0
1
1
3 clocks
1
X
X
Reserved

Test Mode field (A8~A7)
These two bits are used to enter the test mode and must be programmed to "00" in normal operation.
Table 10. Test Mode
A8
A7
Test Mode
0
0
normal mode
0
1
Vendor Use Only
1
X
Vendor Use Only