参数资料
型号: V58C2256324SAH-40
厂商: PROMOS TECHNOLOGIES INC
元件分类: DRAM
英文描述: 8M X 32 DDR DRAM, 0.6 ns, PBGA144
封装: LEAD FREE, BGA-144
文件页数: 7/37页
文件大小: 557K
代理商: V58C2256324SAH-40
15
V58C2256324SA Rev. 1.0 November 2003
ProMOS TECHNOLOGIES
V58C2256324SA
BurstModeOperation
Burstmodeoperationisusedtoprovideaconstantflowofdatatothememory(writecycle)orfromthememory(readcycle).Theburst
lengthisprogrammableandsetbyaddressbitsA0-A3duringtheModeRegisterSetupcommand.Theburstlengthcontrolsthenumber
ofwordsthatwillbeoutputafterareadcommandorthenumberofwordstobeinputafterawritecommand.Onewordis32bitswide.
Thesequentialburstlengthcanbesetto2,4or8datawords.
BurstModeandSequence
Note: standar dinterleaved burst modealsoavailable but not spec ifiedhere
BurstLength
StartingColumnAddress
OrderofAccesswithinaBurst
A2
A1
A0
Type=Sequential
2
0
1
4
00
0-1-2-3
01
1-2-3-0
10
2-3-0-1
11
3-0-1-2
8
000
0-1-2-3-4-5-6-7
001
1-2-3-4-5-6-7-0
010
2-3-4-5-6-7-0-1
011
3-4-5-6-7-0-1-2
100
4-5-6-7-0-1-2-3
101
5-6-7-0-1-2-3-4
110
6-7-0-1-2-3-4-5
111
7-0-1-2-3-4-5-6
0-1
1-0
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