Datasheet

•
Burst Type Field (A3)
The Addressing Mode can be one of two modes, Interleave Mode or Sequential Mode. Sequential
Mode supports burst length of 1, 2, 4, 8, or full page, but Interleave Mode only supports burst length
of 4 and 8.
Table 7. Addressing Mode Select Field
A3
Burst Type
0
Sequential
1
Interleave
•
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
AS4C32M16SB-6TIN
AS4C32M16SB-7TIN
AS4C32M16SB-7TCN
Confidential
- 15/55 -
Rev.1.0 June 2016