mt45w4mw16b Micron Semiconductor Products, mt45w4mw16b Datasheet - Page 22

• Manufacturer Part Number: mt45w4mw16b
• Description: Async/page/burst Cellularramtm 1.0 Memory
• Manufacturer: Micron Semiconductor Products

Table 4:
Burst Length (BCR[2:0]) Default = Continuous Burst
Burst Wrap (BCR[3]) Default = Burst No Wrap
PDF: 09005aef80be1fbd/Source: 09005aef80be2036
Burst CellularRAM_2.fm - Rev. G 10/05 EN
BCR[3] Wrap (Decimal)
Burst Wrap
0
1
Yes
No
Sequence and Burst Length
Starting
Address
14
15
14
15
...
...
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
Burst lengths define the number of words the device outputs during a burst READ oper-
ation. The device supports a burst length of 4, 8, or 16 words. The device can also be set
in continuous burst mode where data is output sequentially without regard to address
boundaries; the internal address wraps to 000000h if the device is read past the last
address. WRITE bursts are always performed using continuous burst mode.
The burst wrap option determines if a 4-, 8-, or 16-word burst READ wraps within the
burst length, or steps through sequential addresses. If the wrap option is not enabled,
the device outputs data from sequential addresses without regard to burst boundaries;
the internal address wraps to 000000h if the device is read past the last address.
4-Word
Length
Linear
0-1-2-3
1-2-3-0
2-3-0-1
3-0-1-2
0-1-2-3
1-2-3-4
2-3-4-5
3-4-5-6
Burst
64Mb: 4 Meg x 16 Async/Page/Burst CellularRAM 1.0 Memory
5-6-7-8-9-10-11-12
7-8-9-10-11-12-13-
4-5-6-7-8-9-10-11
6-7-8-9-10-11-12-
3-4-5-6-7-8-9-10
0-1-2-3-4-5-6-7
1-2-3-4-5-6-7-0
2-3-4-5-6-7-0-1
3-4-5-6-7-0-1-2
4-5-6-7-0-1-2-3
5-6-7-0-1-2-3-4
6-7-0-1-2-3-4-5
7-0-1-2-3-4-5-6
0-1-2-3-4-5-6-7
1-2-3-4-5-6-7-8
2-3-4-5-6-7-8-9
Burst Length
8-Word
Linear
13
14
22
1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16
3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-
6-7-8-9-10-11-12-13-14-...-16-17-18-19-
5-6-7-8-9-10-11-12-13-14-15-0-1-2-3-4
6-7-8-9-10-11-12-13-14-15-0-1-2-3-4-5
7-8-9-10-11-12-13-14-15-0-1-2-3-4-5-6
15-0-1-2-3-4-5-6-7-8-9-10-11-12-13-14
0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15
1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-0
2-3-4-5-6-7-8-9-10-11-12-13-14-15-0-1
3-4-5-6-7-8-9-10-11-12-13-14-15-0-1-2
4-5-6-7-8-9-10-11-12-13-14-15-0-1-2-3
14-15-0-1-2-3-4-5-6-7-8-9-10-11-12-13
0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15
2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-
5-6-7-8-9-10-11-12-13-...-15-16-17-18-
14-15-16-17-18-19-...-23-24-25-26-27-
15-16-17-18-19-20-...-24-25-26-27-28-
4-5-6-7-8-9-10-11-12-13-14-15-16-17-
7-8-9-10-11-12-13-14-...-17-18-19-20-
16-Word Burst Length
Micron Technology, Inc., reserves the right to change products or specifications without notice.
Linear
18-19
19-20
20-21
21-22
28-29
29-30
17
18
...
...
Configuration Registers
©2003 Micron Technology, Inc. All rights reserved.
7-8-9-10-11-12-13-…
7-8-9-10-11-12-13…
Continuous Burst
14-15-16-17-18-19-
15-16-17-18-19-20-
14-15-16-17-18-19-
15-16-17-18-19-20-
6-7-8-9-10-11-12…
5-6-7-8-9-10-11-…
5-6-7-8-9-10-11…
6-7-8-9-10-11-12-
4-5-6-7-8-9-10-…
4-5-6-7-8-9-10-…
0-1-2-3-4-5-6-…
1-2-3-4-5-6-7-…
2-3-4-5-6-7-8-…
3-4-5-6-7-8-9-…
0-1-2-3-4-5-6-…
1-2-3-4-5-6-7-…
2-3-4-5-6-7-8-…
3-4-5-6-7-8-9-…
Linear
20-…
21-…
20-...
21...
...
...