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分享那位知道ARM芯片有那个是支持DDRII的吗?
我只知道AU1200是支持DDRII的,可惜他是MIPS的,我不喜欢,不知道ARM是否有支持DDRII的没?
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qjy_chess 2009-02-07
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可以肯定三星的S3C2450是支持DDR2的，当然，也支持SDRAM, Mobile SDRAM, Mobile DDR。从货源的角度看，还是DDR2牛！可惜的是，2450只支持4 bank架构的DDR2，而不支持8 bank的！目前，4 bank的只到512Mb(64MB)，要想容量大，就得用多片！也不知三星怎么想的，唉
catnm 2009-02-07
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友情up
netsocket 2009-02-07
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友情up
wohuazhen 2009-02-06
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一颗叫pollux的韩国芯片，带3D加速
guetcw 2009-02-06
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6410不支持DDR2的
guetcw 2009-02-06
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The S3C2450 Mobile DRAM Controller supports three kinds of memory interface - (Mobile) SDRAM and mobile
DDR and mobile DDR2. Mobile DRAM controller provides 2 chip select signals (2 memory banks), these are used
for up to 2 (mobile) SDRAM banks or 2 mobile DDR banks or 2 mobile DDR2 banks. Mobile DRAM controller
can’t support 3 kinds of memory interface simultaneous, for example one bank for (mobile) SDRAM and one bank
for mobile DDR.
Mobile DRAM controller has the following features:
• Support little endian
• Mobile DDR SDRAM and (Mobile) SDRAM
− Supports 32-bit for SDRAM and 16-bit data bus interface for DDR.
− Address space: up to 512Mbyte
− Supports 2 banks: 2-nCS (chip selection)
− 16-bit Refresh Timer
− Self Refresh Mode support (controlled by power management)
− Programmable CAS Latency
− Provide Write buffer: 8-word size
− Provide pre-charge and active power down mode
− Provide power save mode
− Support extended MRS for mobile DRAM)
DDR and mobile DDR2. Mobile DRAM controller provides 2 chip select signals (2 memory banks), these are used
for up to 2 (mobile) SDRAM banks or 2 mobile DDR banks or 2 mobile DDR2 banks. Mobile DRAM controller
can’t support 3 kinds of memory interface simultaneous, for example one bank for (mobile) SDRAM and one bank
for mobile DDR.
Mobile DRAM controller has the following features:
• Support little endian
• Mobile DDR SDRAM and (Mobile) SDRAM
− Supports 32-bit for SDRAM and 16-bit data bus interface for DDR.
− Address space: up to 512Mbyte
− Supports 2 banks: 2-nCS (chip selection)
− 16-bit Refresh Timer
− Self Refresh Mode support (controlled by power management)
− Programmable CAS Latency
− Provide Write buffer: 8-word size
− Provide pre-charge and active power down mode
− Provide power save mode
− Support extended MRS for mobile DRAM)
catnm 2009-02-05
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友情up
netsocket 2009-02-05
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友情up
Panghuang 2009-02-04
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好的,谢谢楼上的
qiaohuiic 2009-02-04
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LZ看一下sigma designs有没。好像有的。
shuiyan 2009-02-03
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2450已经量产了吗？现在主推的好像是ARM11的6400。
gsymichael 2009-02-03
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Samsung 2450
shuiyan 2009-02-03
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目前ARM架构的CPU的确没有支持DDR2的。
Centrality（就是被Sirf收购的）和三星的07年下半年倒是说过下一代会支持DDR2，但是因为我们的平台没有那么快的升级需求，所以也没继续关注。
Centrality（就是被Sirf收购的）和三星的07年下半年倒是说过下一代会支持DDR2，但是因为我们的平台没有那么快的升级需求，所以也没继续关注。
noenoughmemory 2009-02-02
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ding
